531 FPUS55 KRIW 220753 ZFPRIW Zone Forecast Product for Western and Central Wyoming National Weather Service Riverton WY 151 AM MDT Mon Sep 22 2025 WYZ020-221000- Natrona County Lower Elevations- Including the city of Casper 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Mostly clear. Lows around 50. Southwest winds 10 to 15 mph with gusts up to 30 mph. .MONDAY...Mostly cloudy. Showers likely with a chance of thunderstorms in the afternoon. Breezy with highs in the lower 60s. North winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 60 percent. .MONDAY NIGHT...Cloudy. Showers likely with a slight chance of thunderstorms in the evening, then showers likely after midnight. Breezy with lows in the mid 40s. North winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent. .TUESDAY...Cloudy with a chance of showers in the morning, then partly cloudy in the afternoon. Highs in the lower 60s. North winds 10 to 15 mph with gusts up to 25 mph, becoming northeast in the afternoon. Chance of rain 30 percent. .TUESDAY NIGHT...Mostly clear. Lows around 40. South winds around 10 mph after midnight. .WEDNESDAY...Sunny. Highs in the lower 70s. .WEDNESDAY NIGHT...Clear. Lows in the mid 40s. .THURSDAY...Sunny. Highs in the upper 70s. .THURSDAY NIGHT...Mostly clear. Lows around 50. .FRIDAY...Mostly sunny. Highs in the upper 70s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. .SATURDAY...Mostly sunny. Highs in the mid 70s. .SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. .SUNDAY...Mostly sunny. Highs in the mid 70s. $$ WYZ017-221000- Wind River Basin- Including the cities of Riverton and Shoshoni 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Mostly clear. Lows around 50. West winds 10 to 15 mph with gusts up to 30 mph. .MONDAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Breezy, cooler with highs around 60. North winds 15 to 20 mph. Gusts up to 30 mph, increasing to 40 mph in the afternoon. Chance of rain 80 percent. .MONDAY NIGHT...Cloudy. Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 40s. Northwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 60 percent. .TUESDAY...Partly cloudy in the morning, then clearing. Highs in the mid 60s. Northwest winds around 10 mph in the morning. .TUESDAY NIGHT...Clear. Lows in the lower 40s. .WEDNESDAY...Sunny. Highs in the lower 70s. .WEDNESDAY NIGHT...Clear. Lows in the mid 40s. .THURSDAY...Sunny. Highs in the mid 70s. .THURSDAY NIGHT...Mostly clear. Lows in the mid 40s. .FRIDAY...Mostly sunny. Highs in the mid 70s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. .SATURDAY...Mostly sunny. Highs in the mid 70s. .SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. .SUNDAY...Mostly sunny. Highs in the lower 70s. $$ WYZ018-221000- Lander Foothills- Including the city of Lander 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Partly cloudy with a 30 percent chance of showers. Lows in the lower 50s. Southwest winds around 10 mph. .MONDAY...Cloudy. Showers likely with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Breezy with highs around 60. Temperature falling into the lower 50s in the afternoon. North winds 15 to 20 mph with gusts up to 30 mph in the afternoon. Chance of rain 90 percent. .MONDAY NIGHT...A slight chance of thunderstorms in the evening. Showers. Lows in the lower 40s. Northwest winds around 10 mph with gusts up to 20 mph. Chance of rain 80 percent. .TUESDAY...Mostly cloudy with a slight chance of showers in the morning, then mostly sunny in the afternoon. Highs in the lower 60s. Chance of rain 20 percent. .TUESDAY NIGHT...Clear. Lows in the lower 40s. .WEDNESDAY...Sunny. Highs in the lower 70s. .WEDNESDAY NIGHT...Clear. Lows in the mid 40s. .THURSDAY...Sunny. Highs in the mid 70s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. .FRIDAY...Mostly sunny. Highs in the mid 70s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. .SATURDAY...Mostly sunny. Highs in the lower 70s. .SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. .SUNDAY...Mostly sunny. Highs in the lower 70s. $$ WYZ028-221000- Rock Springs and Green River- Including the cities of Rock Springs and Green River 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Cloudy with a chance of showers and thunderstorms. Lows in the upper 40s. West winds around 10 mph. Chance of rain 30 percent. .MONDAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 60s. West winds 10 to 15 mph, becoming northwest in the afternoon. Chance of rain 60 percent. .MONDAY NIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with showers likely. Lows in the upper 30s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 60 percent. .TUESDAY...Mostly cloudy with a slight chance of showers in the morning, then partly cloudy in the afternoon. Highs around 60. Northeast winds around 10 mph with gusts up to 25 mph. Chance of rain 20 percent. .TUESDAY NIGHT...Mostly clear. Lows in the upper 30s. Southeast winds around 10 mph in the evening. .WEDNESDAY...Mostly sunny. Highs around 70. .WEDNESDAY NIGHT...Mostly clear. Lows around 40. .THURSDAY...Mostly sunny. Highs in the lower 70s. .THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. .FRIDAY...Mostly sunny. Highs in the mid 70s. .FRIDAY NIGHT...Mostly clear. Lows in the lower 40s. .SATURDAY...Mostly sunny. Highs in the lower 70s. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s. .SUNDAY...Partly cloudy in the morning, then clearing. A slight chance of. Highs around 70. $$ WYZ013-221000- Jackson Hole- Including the city of Jackson 151 AM MDT Mon Sep 22 2025 ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY MORNING... .REST OF TONIGHT...Cloudy with showers likely with a chance of thunderstorms. Lows around 40. Chance of rain 60 percent. .MONDAY...Mostly cloudy. Patchy fog in the morning. Rain showers with a slight chance of thunderstorms in the morning, then rain showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 50s. North winds around 10 mph in the afternoon. Chance of rain 80 percent. .MONDAY NIGHT...Partly cloudy with a chance of rain showers in the evening, then clear after midnight. Widespread frost after midnight. Lows around 30. North winds around 10 mph in the evening. Chance of rain 30 percent. .TUESDAY...Sunny. Highs in the mid 60s. .TUESDAY NIGHT...Clear. Lows in the mid 30s. .WEDNESDAY...Sunny. Highs in the lower 70s. .WEDNESDAY NIGHT...Clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs in the lower 70s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. .FRIDAY...Mostly sunny. Highs in the lower 70s. .FRIDAY NIGHT...Mostly clear. Lows in the upper 30s. .SATURDAY...Mostly sunny. Highs in the upper 60s. .SATURDAY NIGHT...Mostly clear. Lows in the mid 30s. .SUNDAY...Mostly sunny. Highs in the upper 60s. $$ WYZ003-221000- Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the upper 40s. North winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 30 percent. .MONDAY...Showers with a chance of thunderstorms. Breezy, cooler with highs in the mid 50s. North winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 80 percent. .MONDAY NIGHT...Mostly cloudy with showers likely in the evening, then partly cloudy after midnight. Lows in the lower 40s. North winds 10 to 15 mph with gusts up to 25 mph, becoming west after midnight. Chance of rain 60 percent. .TUESDAY...Sunny. Highs in the mid 60s. Southeast winds around 10 mph in the afternoon. .TUESDAY NIGHT...Clear. Lows in the mid 40s. South winds around 10 mph, becoming southwest after midnight. .WEDNESDAY...Sunny. Highs in the mid 70s. .WEDNESDAY NIGHT...Clear. Lows around 50. .THURSDAY...Sunny. Highs in the upper 70s. .THURSDAY NIGHT...Mostly clear. Lows around 50. .FRIDAY...Mostly sunny. Highs in the mid 70s. .FRIDAY NIGHT...Mostly clear. Lows around 50. .SATURDAY...Mostly sunny. Highs in the lower 70s. .SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. .SUNDAY...Mostly sunny. Highs in the lower 70s. $$ WYZ004-221000- North Bighorn Basin- Including the cities of Basin, Greybull, Lovell, Powell, and Shell 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Partly cloudy with a chance of showers with a slight chance of thunderstorms. Breezy with lows in the mid 50s. North winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 30 percent. .MONDAY...Showers likely with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Breezy, cooler with highs in the lower 60s. North winds 20 to 25 mph with gusts up to 35 mph. Chance of rain 80 percent. .MONDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 40s. North winds 10 to 15 mph, becoming northwest after midnight. .TUESDAY...Sunny. Highs around 70. Southeast winds around 10 mph in the afternoon. .TUESDAY NIGHT...Clear. Lows in the mid 40s. Southeast winds around 10 mph. .WEDNESDAY...Sunny. Highs in the upper 70s. .WEDNESDAY NIGHT...Clear. Lows in the upper 40s. .THURSDAY...Sunny. Highs around 80. .THURSDAY NIGHT...Clear. Lows in the upper 40s. .FRIDAY...Mostly sunny. Highs around 80. .FRIDAY NIGHT...Mostly clear. Lows in the upper 40s. .SATURDAY...Mostly sunny. Highs in the upper 70s. .SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. .SUNDAY...Mostly sunny. Highs in the mid 70s. $$ WYZ006-221000- Southeast Bighorn Basin- Including the cities of Ten Sleep and Worland 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Partly cloudy. Lows in the mid 50s. Northwest winds 10 to 15 mph with gusts up to 30 mph. .MONDAY...Showers likely with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Breezy, cooler with highs in the lower 60s. Northwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 80 percent. .MONDAY NIGHT...Mostly cloudy. Showers likely, mainly in the evening. Lows in the mid 40s. West winds around 10 mph with gusts up to 20 mph. Chance of rain 60 percent. .TUESDAY...Mostly sunny. Highs in the upper 60s. .TUESDAY NIGHT...Clear. Lows in the mid 40s. Southeast winds around 10 mph after midnight. .WEDNESDAY...Sunny. Highs in the upper 70s. .WEDNESDAY NIGHT...Clear. Lows in the mid 40s. .THURSDAY...Sunny. Highs around 80. .THURSDAY NIGHT...Clear. Lows in the upper 40s. .FRIDAY...Mostly sunny. Highs in the upper 70s. .FRIDAY NIGHT...Mostly clear. Lows in the upper 40s. .SATURDAY...Mostly sunny. Highs in the upper 70s. .SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. .SUNDAY...Mostly sunny. Highs in the mid 70s. $$ WYZ005-221000- Southwest Bighorn Basin- Including the city of Thermopolis 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Partly cloudy. Lows in the lower 50s. West winds 10 to 15 mph with gusts up to 30 mph. .MONDAY...A slight chance of thunderstorms. Showers, breezy, cooler with highs around 60. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 80 percent. .MONDAY NIGHT...Mostly cloudy with a 40 percent chance of showers. Lows in the mid 40s. Northwest winds around 10 mph with gusts up to 20 mph. .TUESDAY...Mostly sunny. Highs around 70. Southwest winds around 10 mph, becoming south in the afternoon. .TUESDAY NIGHT...Clear. Lows in the lower 40s. South winds around 10 mph. .WEDNESDAY...Sunny. Highs in the mid 70s. .WEDNESDAY NIGHT...Clear. Lows in the upper 40s. .THURSDAY...Sunny. Highs around 80. .THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. .FRIDAY...Mostly sunny. Highs around 80. .FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. .SATURDAY...Mostly sunny. Highs in the mid 70s. .SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. .SUNDAY...Mostly sunny. Highs in the mid 70s. $$ WYZ023-221000- Star Valley- Including the cities of Afton, Alpine, Star Valley Ranch, and Thayne 151 AM MDT Mon Sep 22 2025 ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY MORNING... .REST OF TONIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 40s. Chance of rain 30 percent. .MONDAY...Mostly cloudy with showers likely with a slight chance of thunderstorms in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Highs around 60. North winds 10 to 15 mph in the afternoon. Chance of rain 60 percent. .MONDAY NIGHT...Mostly clear. A chance of rain showers in the evening. Widespread frost after midnight. Lows in the lower 30s. North winds 10 to 15 mph with gusts up to 25 mph in the evening. Chance of rain 30 percent. .TUESDAY...Mostly sunny. Highs around 70. .TUESDAY NIGHT...Clear. Lows in the mid 30s. .WEDNESDAY...Sunny. Highs in the mid 70s. .WEDNESDAY NIGHT...Clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs in the mid 70s. .THURSDAY NIGHT...Mostly clear. Lows around 40. .FRIDAY...Mostly sunny. Highs in the mid 70s. .FRIDAY NIGHT...Mostly clear. Lows in the upper 30s. .SATURDAY...Mostly sunny. Highs in the lower 70s. .SATURDAY NIGHT...Mostly clear. Lows in the upper 30s. .SUNDAY...Mostly sunny. A slight chance of. Highs around 70. $$ WYZ025-221000- Upper Green River Basin Foothills- Including the city of Pinedale 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Mostly cloudy with a chance of rain showers with a slight chance of thunderstorms. Lows around 40. Northwest winds around 10 mph. Chance of rain 30 percent. .MONDAY...Mostly cloudy with rain showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 50s. Northwest winds 10 to 15 mph. Chance of rain 60 percent. .MONDAY NIGHT...Partly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Widespread frost after midnight. Lows around 30. Northwest winds 10 to 15 mph with gusts up to 25 mph in the evening. Chance of rain 30 percent. .TUESDAY...Mostly sunny. Highs in the lower 60s. .TUESDAY NIGHT...Mostly clear. Lows in the lower 30s. .WEDNESDAY...Sunny. Highs around 70. .WEDNESDAY NIGHT...Clear. Lows in the mid 30s. .THURSDAY...Sunny. Highs around 70. .THURSDAY NIGHT...Mostly clear. Lows in the mid 30s. .FRIDAY...Mostly sunny. Highs around 70. .FRIDAY NIGHT...Mostly clear. Lows in the mid 30s. .SATURDAY...Mostly sunny. Highs around 70. .SATURDAY NIGHT...Mostly clear. Lows in the mid 30s. .SUNDAY...Mostly sunny. A slight chance of. Highs around 70. $$ WYZ026-221000- Upper Green River Basin- Including the cities of La Barge, Big Piney, and Farson 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Cloudy with a chance of rain showers with a slight chance of thunderstorms. Lows in the mid 40s. Northwest winds around 10 mph. Chance of rain 30 percent. .MONDAY...Mostly cloudy with a chance of rain showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Breezy with highs in the lower 60s. Northwest winds 15 to 20 mph. Chance of rain 30 percent. .MONDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of thunderstorms in the evening. A chance of rain showers. Widespread frost after midnight. Breezy with lows in the upper 30s. North winds 15 to 20 mph, becoming northwest around 10 mph after midnight. Chance of rain 30 percent. .TUESDAY...Mostly sunny. Highs in the lower 60s. Southeast winds around 10 mph with gusts up to 20 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows in the mid 30s. Southeast winds around 10 mph in the evening. .WEDNESDAY...Sunny. Highs in the upper 60s. .WEDNESDAY NIGHT...Clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs in the lower 70s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. .FRIDAY...Mostly sunny. Highs in the lower 70s. .FRIDAY NIGHT...Mostly clear. Lows in the upper 30s. .SATURDAY...Mostly sunny. Highs around 70. .SATURDAY NIGHT...Mostly clear. Lows in the upper 30s. .SUNDAY...Mostly sunny. Highs around 70. $$ WYZ010-221000- Northeast Johnson County- Including the city of Buffalo 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Partly cloudy and windy. Lows in the mid 50s. Northwest winds 20 to 30 mph with gusts up to 45 mph. .MONDAY...Cloudy. A chance of showers in the morning, then showers likely with a slight chance of thunderstorms in the afternoon. Breezy, cooler with highs around 60. North winds 15 to 25 mph with gusts up to 40 mph. Chance of rain 60 percent. .MONDAY NIGHT...Mostly cloudy. Showers likely in the evening. Breezy with lows in the mid 40s. North winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 60 percent. .TUESDAY...Partly cloudy in the morning, then clearing. Highs around 70. North winds around 10 mph, becoming east in the afternoon. .TUESDAY NIGHT...Clear. Lows in the mid 40s. South winds around 10 mph. .WEDNESDAY...Sunny. Highs in the upper 70s. .WEDNESDAY NIGHT...Clear. Lows in the upper 40s. .THURSDAY...Sunny. Highs in the lower 80s. .THURSDAY NIGHT...Clear. Lows around 50. .FRIDAY...Mostly sunny. Highs around 80. .FRIDAY NIGHT...Mostly clear. Lows around 50. .SATURDAY...Mostly sunny. Highs in the mid 70s. .SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. .SUNDAY...Mostly sunny. Highs in the mid 70s. $$ WYZ011-221000- Southeast Johnson County- Including the city of Kaycee 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Partly cloudy and breezy. Lows in the lower 50s. North winds 20 to 25 mph with gusts up to 45 mph. .MONDAY...Cloudy. A chance of showers in the morning, then showers likely with a slight chance of thunderstorms in the afternoon. Breezy, cooler with highs in the lower 60s. North winds 15 to 25 mph. Gusts up to 40 mph in the morning. Chance of rain 60 percent. .MONDAY NIGHT...A slight chance of thunderstorms in the evening. Cloudy with a chance of showers. Breezy with lows in the mid 40s. North winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 30 percent. .TUESDAY...Partly cloudy in the morning, then clearing. Highs in the upper 60s. North winds around 10 mph with gusts up to 20 mph in the morning. .TUESDAY NIGHT...Clear. Lows in the mid 40s. South winds around 10 mph. .WEDNESDAY...Sunny. Highs in the upper 70s. .WEDNESDAY NIGHT...Clear. Lows in the mid 40s. .THURSDAY...Sunny. Highs in the lower 80s. .THURSDAY NIGHT...Mostly clear. Lows around 50. .FRIDAY...Mostly sunny. Highs in the upper 70s. .FRIDAY NIGHT...Mostly clear. Lows in the upper 40s. .SATURDAY...Mostly sunny. Highs in the mid 70s. .SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. .SUNDAY...Mostly sunny. Highs in the mid 70s. $$ WYZ027-221000- South Lincoln County- Including the cities of Kemmerer and Cokeville 151 AM MDT Mon Sep 22 2025 ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY MORNING... .REST OF TONIGHT...Cloudy with a chance of showers and thunderstorms. Lows in the mid 40s. West winds around 10 mph. Chance of rain 30 percent. .MONDAY...Cloudy in the morning, then becoming partly cloudy. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Breezy with highs around 60. Northwest winds 15 to 20 mph. Chance of rain 40 percent. .MONDAY NIGHT...Partly cloudy. A chance of rain showers with a slight chance of thunderstorms in the evening. Breezy with lows in the upper 30s. North winds 15 to 20 mph, becoming east around 10 mph after midnight. Chance of rain 30 percent. .TUESDAY...Mostly sunny. Highs in the lower 60s. Southeast winds around 10 mph. .TUESDAY NIGHT...Mostly clear. Lows in the upper 30s. Southeast winds around 10 mph with gusts up to 20 mph in the evening. .WEDNESDAY...Sunny. Highs around 70. .WEDNESDAY NIGHT...Clear. Lows around 40. .THURSDAY...Sunny. Highs in the mid 70s. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 40. .FRIDAY...Mostly sunny. Highs in the lower 70s. .FRIDAY NIGHT...Mostly clear. Lows in the lower 40s. .SATURDAY...Mostly sunny. Highs around 70. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 40. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. A slight chance of. Highs around 70. $$ WYZ016-221000- Upper Wind River Basin- Including the city of Dubois 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Cloudy with a chance of showers with a slight chance of thunderstorms. Breezy. Near steady temperature in the upper 40s. Northwest winds 15 to 20 mph with gusts up to 40 mph. Chance of rain 30 percent. .MONDAY...Showers likely with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the mid 50s. Northwest winds around 10 mph, becoming northeast in the afternoon. Chance of rain 90 percent. .MONDAY NIGHT...Cloudy with rain showers likely with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Widespread frost after midnight. Lows in the upper 30s. South winds 10 to 15 mph with gusts up to 25 mph in the evening. Chance of rain 60 percent. .TUESDAY...Mostly sunny. Highs around 60. Southeast winds around 10 mph with gusts up to 20 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows around 40. South winds around 10 mph, becoming west after midnight. .WEDNESDAY...Sunny. Highs around 70. .WEDNESDAY NIGHT...Clear. Lows in the lower 40s. .THURSDAY...Sunny. Highs in the lower 70s. .THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. .FRIDAY...Mostly sunny. Highs around 70. .FRIDAY NIGHT...Mostly clear. Lows in the lower 40s. .SATURDAY...Mostly sunny. Highs around 70. .SATURDAY NIGHT...Mostly clear. Lows around 40. .SUNDAY...Mostly sunny. Highs around 70. $$ WYZ001-221000- Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Rain showers with a chance of thunderstorms. Lows in the upper 30s. Chance of rain 80 percent. .MONDAY...Mostly cloudy with a chance of thunderstorms. Rain showers, mainly in the morning. Highs in the upper 40s. North winds 10 to 15 mph. Chance of rain 80 percent. .MONDAY NIGHT...Mostly clear. Widespread frost. Lows in the upper 20s. Northeast winds 10 to 15 mph. .TUESDAY...Mostly sunny. Highs in the lower 60s. .TUESDAY NIGHT...Clear. Lows in the mid 30s. .WEDNESDAY...Sunny. Highs in the mid 60s. .WEDNESDAY NIGHT...Clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs in the upper 60s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. .FRIDAY...Mostly sunny. Highs in the mid 60s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 30s. .SATURDAY...Mostly sunny. Highs in the lower 60s. .SATURDAY NIGHT...Mostly clear. Lows in the mid 30s. .SUNDAY...Mostly sunny. Highs in the lower 60s. $$ WYZ029-221000- Flaming Gorge- 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Cloudy. Lows in the upper 40s. .MONDAY...Mostly cloudy. Showers likely with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Highs around 60. West winds 10 to 15 mph, becoming northwest in the afternoon. Chance of rain 80 percent. .MONDAY NIGHT...A slight chance of thunderstorms in the evening. Showers likely. Lows around 40. Northeast winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 70 percent. .TUESDAY...Mostly cloudy with a slight chance of showers in the morning, then partly cloudy in the afternoon. Highs in the upper 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent. .TUESDAY NIGHT...Mostly clear. Lows around 40. East winds around 10 mph in the evening. .WEDNESDAY...Mostly sunny. Highs in the mid 60s. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs in the lower 70s. .THURSDAY NIGHT...Mostly clear. Lows in the mid 40s. .FRIDAY...Partly cloudy in the morning, then clearing. Highs in the lower 70s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. .SATURDAY...Mostly sunny. Highs in the lower 70s. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s. .SUNDAY...Partly cloudy. Highs around 70. $$ WYZ022-221000- Casper Mountain- 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Mostly clear. Lows in the mid 40s. Southwest winds 10 to 15 mph with gusts up to 30 mph. .MONDAY...Partly cloudy in the morning, then mostly cloudy with a chance of showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 50s. North winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 30 percent. .MONDAY NIGHT...Showers likely with a slight chance of thunderstorms in the evening, then showers after midnight. Areas of fog after midnight. Breezy with lows in the upper 30s. North winds 20 to 25 mph, diminishing to 10 to 15 mph after midnight. Chance of rain 80 percent. .TUESDAY...Cloudy with a chance of showers in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Breezy with highs in the mid 50s. North winds 15 to 20 mph with gusts up to 30 mph, becoming northeast around 10 mph in the afternoon. Chance of rain 40 percent. .TUESDAY NIGHT...Mostly clear. Lows in the upper 30s. .WEDNESDAY...Mostly sunny. Highs in the lower 60s. .WEDNESDAY NIGHT...Clear. Lows in the lower 40s. .THURSDAY...Sunny. Highs in the upper 60s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. .FRIDAY...Mostly sunny. Highs in the upper 60s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. .SATURDAY...Mostly sunny. Highs in the upper 60s. .SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. .SUNDAY...Mostly sunny. Highs in the mid 60s. $$ WYZ002-221000- Absaroka Mountains- 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Rain showers likely with a slight chance of thunderstorms. Near steady temperature in the lower 40s. West winds around 10 mph with gusts up to 20 mph. Chance of rain 60 percent. .MONDAY...Rain showers with a chance of thunderstorms. Snow showers. Patchy fog. Snow accumulation up to 3 inches. Cooler with highs in the mid 40s. Northwest winds around 10 mph, becoming north in the afternoon. Chance of precipitation 80 percent. .MONDAY NIGHT...Mostly cloudy with rain showers likely with a chance of snow showers in the evening, then partly cloudy after midnight. Widespread frost after midnight. Snow accumulation up to 1 inch. Lows in the lower 30s. Northeast winds around 10 mph with gusts up to 25 mph. Chance of precipitation 60 percent. .TUESDAY...Mostly sunny. Highs in the mid 50s. South winds around 10 mph in the afternoon. .TUESDAY NIGHT...Clear. Lows in the upper 30s. Southwest winds around 10 mph. .WEDNESDAY...Sunny. Highs in the lower 60s. .WEDNESDAY NIGHT...Clear. Lows around 40. .THURSDAY...Sunny. Highs in the lower 60s. .THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. .FRIDAY...Mostly sunny. Highs in the lower 60s. .FRIDAY NIGHT...Mostly clear. Lows around 40. .SATURDAY...Mostly sunny. Highs in the upper 50s. .SATURDAY NIGHT...Mostly clear. Lows in the upper 30s. .SUNDAY...Mostly sunny. Highs in the upper 50s. $$ WYZ007-221000- Owl Creek and Bridger Mountains- 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Partly cloudy with a 30 percent chance of showers. Lows around 50. North winds 10 to 15 mph with gusts up to 30 mph. .MONDAY...Showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Patchy fog in the afternoon. Breezy, cooler with highs in the lower 50s. North winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 80 percent. .MONDAY NIGHT...Mostly cloudy. Showers, mainly in the evening. Breezy with lows in the lower 40s. Northwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 80 percent. .TUESDAY...Partly cloudy in the morning, then clearing. Highs in the lower 60s. West winds around 10 mph with gusts up to 20 mph, becoming south in the afternoon. .TUESDAY NIGHT...Clear. Lows in the mid 40s. South winds around 10 mph. .WEDNESDAY...Sunny. Highs in the upper 60s. .WEDNESDAY NIGHT...Clear. Lows in the upper 40s. .THURSDAY...Sunny. Highs in the lower 70s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. .FRIDAY...Mostly sunny. Highs in the lower 70s. .FRIDAY NIGHT...Mostly clear. Lows in the upper 40s. .SATURDAY...Mostly sunny. Highs in the upper 60s. .SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. .SUNDAY...Mostly sunny. Highs in the upper 60s. $$ WYZ008-221000- Bighorn Mountains West- 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Partly cloudy with a chance of rain showers with a slight chance of thunderstorms. Breezy with lows in the mid 40s. Northeast winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 30 percent. .MONDAY...Rain showers with a slight chance of thunderstorms in the morning, then rain showers with a chance of thunderstorms in the afternoon. Areas of fog in the afternoon. Cooler with highs in the lower 50s. Northeast winds 10 to 15 mph, becoming northwest in the afternoon. Gusts up to 30 mph. Chance of rain 90 percent. .MONDAY NIGHT...Cloudy with rain showers with a slight chance of thunderstorms in the evening, then partly cloudy with a chance of rain showers after midnight. Patchy fog in the evening, then widespread frost after midnight. Lows in the upper 30s. Northeast winds around 10 mph with gusts up to 25 mph. Chance of rain 80 percent. .TUESDAY...Partly cloudy in the morning, then clearing. Highs in the upper 50s. Southwest winds around 10 mph. .TUESDAY NIGHT...Mostly clear. Lows in the lower 40s. South winds around 10 mph. .WEDNESDAY...Sunny. Highs in the mid 60s. .WEDNESDAY NIGHT...Clear. Lows in the mid 40s. .THURSDAY...Sunny. Highs in the upper 60s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. .FRIDAY...Mostly sunny. Highs in the upper 60s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. .SATURDAY...Mostly sunny. Highs in the mid 60s. .SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. .SUNDAY...Mostly sunny. Highs in the mid 60s. $$ WYZ009-221000- Bighorn Mountains Southeast- 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Partly cloudy with a 30 percent chance of showers. Lows in the upper 40s. Northwest winds 10 to 15 mph with gusts up to 30 mph. .MONDAY...Rain showers with a slight chance of thunderstorms in the morning, then rain showers with a chance of thunderstorms in the afternoon. Patchy fog in the afternoon. Highs in the lower 50s. Northwest winds 10 to 15 mph. Gusts up to 30 mph in the morning. Chance of rain 90 percent. .MONDAY NIGHT...Cloudy. Patchy fog in the evening. Rain showers with a slight chance of thunderstorms in the evening, then a chance of rain showers after midnight. Lows in the upper 30s. North winds around 10 mph. Chance of rain 80 percent. .TUESDAY...Partly cloudy in the morning, then clearing. Highs in the upper 50s. North winds around 10 mph, becoming southeast in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows in the lower 40s. Southwest winds around 10 mph. .WEDNESDAY...Sunny. Highs in the mid 60s. .WEDNESDAY NIGHT...Clear. Lows in the mid 40s. .THURSDAY...Sunny. Highs in the upper 60s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. .FRIDAY...Mostly sunny. Highs in the upper 60s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. .SATURDAY...Mostly sunny. Highs in the mid 60s. .SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. .SUNDAY...Mostly sunny. Highs in the mid 60s. $$ WYZ012-221000- Teton and Gros Ventre Mountains- 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Rain showers with a chance of thunderstorms. Lows in the upper 30s. Chance of rain 80 percent. .MONDAY...Patchy fog in the morning. Rain showers with a chance of thunderstorms. Highs in the mid 40s. West winds around 10 mph, becoming northwest in the afternoon. Chance of rain 80 percent. .MONDAY NIGHT...Partly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Widespread frost. Lows in the lower 30s. Northeast winds around 10 mph. Chance of rain 30 percent. .TUESDAY...Sunny. Highs in the upper 50s. .TUESDAY NIGHT...Clear. Lows in the mid 30s. .WEDNESDAY...Sunny. Highs in the lower 60s. .WEDNESDAY NIGHT...Clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly clear. Lows around 40. .FRIDAY...Mostly sunny. Highs in the lower 60s. .FRIDAY NIGHT...Mostly clear. Lows in the upper 30s. .SATURDAY...Mostly sunny. Highs around 60. .SATURDAY NIGHT...Mostly clear. Lows in the upper 30s. .SUNDAY...Mostly sunny. Highs around 60. $$ WYZ014-221000- Wind River Mountains West- 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Mostly cloudy with a chance of rain showers with a slight chance of thunderstorms. Near steady temperature in the upper 30s. Northwest winds around 10 mph with gusts up to 25 mph. Chance of rain 30 percent. .MONDAY...Cloudy. Rain showers, snow showers likely with a slight chance of thunderstorms in the morning, then rain showers, a chance of thunderstorms and snow showers in the afternoon. Snow accumulation up to 2 inches. Highs in the upper 40s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 80 percent. .MONDAY NIGHT...Mostly cloudy with rain showers, snow showers with a slight chance of thunderstorms in the evening, then partly cloudy with a chance of rain and snow showers after midnight. Widespread frost after midnight. Snow accumulation up to 2 inches. Breezy with lows around 30. Northeast winds 15 to 20 mph with gusts up to 35 mph. Chance of precipitation 80 percent. .TUESDAY...Mostly sunny. Highs in the lower 50s. Northeast winds 10 to 15 mph, becoming southwest in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows in the mid 30s. South winds around 10 mph in the evening. .WEDNESDAY...Sunny. Highs in the upper 50s. .WEDNESDAY NIGHT...Clear. Lows in the mid 30s. .THURSDAY...Sunny. Highs in the lower 60s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. .FRIDAY...Mostly sunny. Highs in the lower 60s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 30s. .SATURDAY...Mostly sunny. Highs in the upper 50s. .SATURDAY NIGHT...Mostly clear. Lows in the mid 30s. .SUNDAY...Mostly sunny. A slight chance of. Highs in the upper 50s. $$ WYZ015-221000- Wind River Mountains East- 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Partly cloudy with a chance of rain showers, snow showers with a slight chance of thunderstorms. Near steady temperature in the lower 40s. West winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 30 percent. .MONDAY...Rain showers, snow showers likely with a slight chance of thunderstorms in the morning, then rain showers, a chance of thunderstorms and snow showers in the afternoon. Patchy fog in the afternoon. Snow accumulation up to 3 inches. Highs in the upper 40s. West winds around 10 mph, becoming north in the afternoon. Chance of precipitation 80 percent. .MONDAY NIGHT...A slight chance of thunderstorms in the evening. Rain and snow showers. Patchy fog. Widespread frost after midnight. Storm total snow accumulation around an inch. Lows around 30. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 90 percent. .TUESDAY...Partly cloudy in the morning, then clearing. Highs around 50. North winds around 10 mph, becoming east in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows in the mid 30s. South winds around 10 mph, becoming west after midnight. .WEDNESDAY...Sunny. Highs in the upper 50s. .WEDNESDAY NIGHT...Clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs around 60. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. .FRIDAY...Mostly sunny. Highs in the upper 50s. .FRIDAY NIGHT...Mostly clear. Lows in the upper 30s. .SATURDAY...Mostly sunny. Highs in the upper 50s. .SATURDAY NIGHT...Mostly clear. Lows in the upper 30s. .SUNDAY...Mostly sunny. A slight chance of. Highs in the mid 50s. $$ WYZ019-221000- Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Partly cloudy. Lows in the upper 40s. West winds 10 to 15 mph with gusts up to 30 mph. .MONDAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Breezy with highs in the upper 50s. Northwest winds around 10 mph with gusts up to 20 mph, becoming north 15 to 20 mph with gusts up to 30 mph in the afternoon. Chance of rain 80 percent. .MONDAY NIGHT...A slight chance of thunderstorms in the evening. Showers, breezy with lows around 40. North winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 80 percent. .TUESDAY...Mostly cloudy with a chance of showers in the morning, then partly cloudy in the afternoon. Breezy with highs in the upper 50s. North winds 15 to 20 mph with gusts up to 30 mph, becoming northeast around 10 mph with gusts up to 20 mph in the afternoon. Chance of rain 40 percent. .TUESDAY NIGHT...Mostly clear. Lows in the upper 30s. Southeast winds around 10 mph in the evening. .WEDNESDAY...Mostly sunny. Highs in the mid 60s. .WEDNESDAY NIGHT...Clear. Lows in the lower 40s. .THURSDAY...Sunny. Highs around 70. .THURSDAY NIGHT...Mostly clear. Lows in the mid 40s. .FRIDAY...Mostly sunny. Highs in the lower 70s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. .SATURDAY...Mostly sunny. Highs in the upper 60s. .SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. .SUNDAY...Mostly sunny. Highs in the upper 60s. $$ WYZ024-221000- Salt River and Wyoming Ranges- 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Cloudy with a chance of showers with a slight chance of thunderstorms. Near steady temperature in the lower 40s. West winds around 10 mph. Chance of rain 30 percent. .MONDAY...Cloudy in the morning, then becoming partly cloudy. Rain showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Breezy with highs in the lower 50s. Northwest winds 15 to 20 mph. Chance of rain 60 percent. .MONDAY NIGHT...Partly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Widespread frost after midnight. Lows in the lower 30s. North winds 10 to 15 mph with gusts up to 25 mph in the evening. Chance of rain 30 percent. .TUESDAY...Mostly sunny. Highs in the upper 50s. Southeast winds around 10 mph. .TUESDAY NIGHT...Clear. Lows in the mid 30s. Southeast winds around 10 mph in the evening. .WEDNESDAY...Sunny. Highs in the mid 60s. .WEDNESDAY NIGHT...Clear. Lows in the upper 30s. .THURSDAY...Sunny. Highs in the upper 60s. .THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. .FRIDAY...Mostly sunny. Highs in the mid 60s. .FRIDAY NIGHT...Mostly clear. Lows around 40. .SATURDAY...Mostly sunny. Highs in the mid 60s. .SATURDAY NIGHT...Mostly clear. Lows around 40. .SUNDAY...Mostly sunny in the morning, then becoming partly cloudy. A slight chance of. Highs in the lower 60s. $$ WYZ030-221000- East Sweetwater County- Including the city of Wamsutter 151 AM MDT Mon Sep 22 2025 .REST OF TONIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the mid 40s. Southwest winds around 10 mph with gusts up to 20 mph. Chance of rain 30 percent. .MONDAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Breezy with highs around 60. West winds 15 to 20 mph. Chance of rain 60 percent. .MONDAY NIGHT...A chance of thunderstorms in the evening. Rain showers. Breezy with lows in the upper 30s. North winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 80 percent. .TUESDAY...Cloudy with a chance of rain showers in the morning, then partly cloudy in the afternoon. Breezy with highs in the mid 50s. Northeast winds 15 to 20 mph. Chance of rain 40 percent. .TUESDAY NIGHT...Mostly clear. Lows in the mid 30s. East winds around 10 mph in the evening. .WEDNESDAY...Mostly sunny. Highs in the mid 60s. .WEDNESDAY NIGHT...Clear. Lows around 40. .THURSDAY...Sunny. Highs around 70. .THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. .FRIDAY...Mostly sunny. Highs around 70. .FRIDAY NIGHT...Mostly clear. Lows in the lower 40s. .SATURDAY...Mostly sunny. Highs around 70. .SATURDAY NIGHT...Mostly clear. Lows in the lower 40s. .SUNDAY...Mostly sunny. Highs around 70. $$