225 FNUS55 KBYZ 270828 FWFBYZ Fire Weather Planning Forecast for SCen and SErn Montana National Weather Service Billings MT 228 AM MDT Mon Apr 27 2020 .DISCUSSION... ...Gusty winds and low relative humidities Tuesday... Gusty winds and low humidities will be noted across the region on Tuesday. Wind gusts of 30 to 40 mph will occur, especially across the eastern districts. Relative humidity will bottom out in the teens for most areas. Wednesday and Thursday will be dry with some of the warmest temperatures of the year, followed by more unsettled weather late this week into next weekend. Frieders MTZ123-272215- Gallatin National Forest- 228 AM MDT Mon Apr 27 2020 .Today... * Sky/weather...........Mostly cloudy. Scattered rain showers in the morning, then numerous rain showers and isolated thunderstorms in the afternoon. * Max temperature.......54-64 at 5000 feet...43-53 at 7000 feet. * 24 hr trend.........10 degrees cooler. * Min humidity..........36-46 percent at 5000 feet...40-50 percent at 7000 feet. * 24 hr trend.........11 percent wetter. * Wind (20 ft) * Slope/valley.........South winds 5 to 10 mph in the morning shifting to the west 5 to 15 mph in the afternoon. * Ridgetop.............West 25 to 40 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................40 percent. * Haines index..........3. .TONIGHT... * Sky/weather...........Partly cloudy. Scattered rain showers, snow showers and isolated thunderstorms in the evening. * Min temperature.......35-44 at 5000 feet...28-38 at 7000 feet. * 24 hr trend.........1 degree cooler. * Max humidity..........58-68 percent at 5000 feet...67-77 percent at 7000 feet. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............West 20 to 35 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......56-66 at 5000 feet...46-56 at 7000 feet. * 24 hr trend.........4 degrees warmer. * Min humidity..........19-28 percent at 5000 feet...28-38 percent at 7000 feet. * 24 hr trend.........12 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............West 20 to 35 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........2. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows 37 to 43. Southwest winds 5 to 10 mph. .WEDNESDAY...Warmer. Mostly cloudy. Scattered showers. Lows 45 to 53. Highs 69 to 78. South winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Numerous showers and isolated thunderstorms. Lows 37 to 45. Highs 65 to 74. Southwest winds 5 to 10 mph. .FRIDAY...Cooler. Mostly cloudy. Scattered showers, snow showers and isolated thunderstorms. Lows 35 to 42. Highs 55 to 64. West winds 5 to 10 mph. .SATURDAY...Mostly cloudy. Scattered showers, isolated thunderstorms and snow showers. Lows 36 to 42. Highs 56 to 66. .SUNDAY...Partly sunny. Numerous showers with possible snow showers and thunderstorms. Highs 55 to 64. $$ MTZ124-272215- Wheatland County/Sweet Grass County- 228 AM MDT Mon Apr 27 2020 .Today... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......60-65. * 24 hr trend.........3 degrees cooler. * Min humidity..........29-34 percent. * 24 hr trend.........13 percent wetter. * Wind (20 ft) * Plains...............West winds 10 to 20 mph. Gusts up to 30 mph in the afternoon. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Zero. * Haines index..........2. .TONIGHT... * Sky/weather...........Mostly clear. Isolated thunderstorms and rain showers in the evening. * Min temperature.......37-42. * 24 hr trend.........4 degrees warmer. * Max humidity..........60-65 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * Plains...............West winds 15 to 25 mph. Gusts up to 30 mph in the evening. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......60-65. * 24 hr trend.........Unchanged. * Min humidity..........16-21 percent. * 24 hr trend.........13 percent drier. * Wind (20 ft) * Plains...............West winds 15 to 25 mph with gusts to around 35 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........2. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows 36 to 41. West winds 5 to 15 mph. .WEDNESDAY...Warmer. Partly cloudy. Lows 46 to 51. Highs 74 to 79. Southwest winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Numerous showers and isolated thunderstorms. Lows 40 to 45. Highs 72 to 77. West winds 10 to 20 mph. .FRIDAY...Cooler. Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 35 to 40. Highs 60 to 65. West winds 10 to 20 mph with gusts to around 30 mph. .SATURDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 36 to 41. Highs 60 to 65. .SUNDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 61 to 66. $$ MTZ125-272215- Stillwater County- 228 AM MDT Mon Apr 27 2020 .Today... * Sky/weather...........Mostly cloudy. Isolated rain showers in the morning, then numerous rain showers and isolated thunderstorms in the afternoon. * Max temperature.......61-66. * 24 hr trend.........3 degrees cooler. * Min humidity..........31-36 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph. Gusts up to 30 mph in the afternoon. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................20 percent. * Haines index..........2. .TONIGHT... * Sky/weather...........Mostly clear. Scattered rain showers and isolated thunderstorms in the evening, then isolated showers and thunderstorms overnight. * Min temperature.......39-44. * 24 hr trend.........2 degrees warmer. * Max humidity..........55-60 percent. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......61-66. * 24 hr trend.........Unchanged. * Min humidity..........18-23 percent. * 24 hr trend.........13 percent drier. * Wind (20 ft) * Plains...............Northwest winds 10 to 20 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows 38 to 43. Southwest winds 5 to 15 mph. .WEDNESDAY...Warmer. Partly cloudy. Lows 48 to 53. Highs 73 to 78. South winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Numerous showers and isolated thunderstorms. Lows 42 to 47. Highs 73 to 78. West winds 5 to 15 mph. .FRIDAY...Cooler. Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 38 to 43. Highs 60 to 65. Northwest winds 5 to 10 mph. .SATURDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 39 to 44. Highs 59 to 64. .SUNDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 62 to 67. $$ MTZ126-272215- Beartooth Ranger District Custer National Forest- 228 AM MDT Mon Apr 27 2020 .Today... * Sky/weather...........Partly sunny. Isolated rain showers in the morning, then numerous rain showers and isolated thunderstorms in the afternoon. * Max temperature.......58-67 at 5000 feet...49-59 at 7000 feet. * 24 hr trend.........4 degrees cooler. * Min humidity..........28-38 percent at 5000 feet...39-49 percent at 7000 feet. * 24 hr trend.........15 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. Gusts up to 30 mph in the afternoon. * Ridgetop.............West 25 to 40 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................30 percent. * Haines index..........3. .TONIGHT... * Sky/weather...........Mostly clear. Scattered rain showers, snow showers and isolated thunderstorms in the evening, then isolated rain showers and snow showers overnight. * Min temperature.......39-44 at 5000 feet...31-41 at 7000 feet. * 24 hr trend.........1 degree cooler. * Max humidity..........53-63 percent at 5000 feet...56-66 percent at 7000 feet. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. Gusts up to 30 mph in the evening. * Ridgetop.............West 25 to 40 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................10 percent. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......55-64 at 5000 feet...49-59 at 7000 feet. * 24 hr trend.........Unchanged. * Min humidity..........17-27 percent at 5000 feet...27-37 percent at 7000 feet. * 24 hr trend.........16 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 10 to 20 mph. * Ridgetop.............West 30 to 45 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........2. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows 39 to 44. West winds 5 to 15 mph. .WEDNESDAY...Warmer. Partly cloudy. Lows 50 to 55. Highs 66 to 76. Southwest winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 44 to 49. Highs 69 to 79. Southwest winds 5 to 15 mph with gusts to around 30 mph. .FRIDAY...Cooler. Mostly cloudy. Numerous showers with possible snow showers and thunderstorms. Lows 39 to 46. Highs 58 to 67. Northwest winds 5 to 15 mph. .SATURDAY...Mostly cloudy. Scattered showers, snow showers and isolated thunderstorms. Lows 40 to 46. Highs 56 to 65. .SUNDAY...Partly sunny. Numerous showers with possible snow showers and thunderstorms. Highs 59 to 68. $$ MTZ127-272215- Golden Valley County/Musselshell county- 228 AM MDT Mon Apr 27 2020 .Today... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......62-67. * 24 hr trend.........Unchanged. * Min humidity..........23-28 percent. * 24 hr trend.........8 percent wetter. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph. Gusts up to 30 mph in the afternoon. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Zero. * Haines index..........2. .TONIGHT... * Sky/weather...........Mostly clear. Isolated thunderstorms and rain showers in the evening. * Min temperature.......42-47. * 24 hr trend.........1 degree warmer. * Max humidity..........52-57 percent. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Plains...............West winds 10 to 20 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......60-65. * 24 hr trend.........2 degrees cooler. * Min humidity..........15-20 percent. * 24 hr trend.........8 percent drier. * Wind (20 ft) * Plains...............Northwest winds 10 to 20 mph. Gusts up to 30 mph in the morning. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........2. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows 40 to 45. Southeast winds 5 to 15 mph. .WEDNESDAY...Warmer. Partly cloudy. Lows 52 to 57. Highs 73 to 78. Southwest winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Numerous showers and isolated thunderstorms. Lows 46 to 51. Highs 74 to 79. West winds 5 to 15 mph. .FRIDAY...Cooler. Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 42 to 47. Highs 61 to 66. Northwest winds 5 to 15 mph. .SATURDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 44 to 49. Highs 61 to 66. .SUNDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 62 to 67. $$ MTZ128-272215- Yellowstone County- 228 AM MDT Mon Apr 27 2020 .Today... * Sky/weather...........Partly sunny in the morning, then cloudy with scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......67-72. * 24 hr trend.........3 degrees cooler. * Min humidity..........22-27 percent. * 24 hr trend.........10 percent wetter. * Wind (20 ft) * Plains...............Southwest winds 5 to 15 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Less than 10 percent. * Haines index..........2. .TONIGHT... * Sky/weather...........Mostly clear. Isolated showers and thunderstorms in the evening. * Min temperature.......43-48. * 24 hr trend.........2 degrees warmer. * Max humidity..........54-59 percent. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......65-70. * 24 hr trend.........2 degrees cooler. * Min humidity..........13-18 percent. * 24 hr trend.........9 percent drier. * Wind (20 ft) * Plains...............Northwest winds 15 to 25 mph with gusts to around 30 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........2. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows 41 to 46. Southeast winds 5 to 15 mph. .WEDNESDAY...Warmer. Partly cloudy. Lows 51 to 56. Highs 78 to 83. Southwest winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 48 to 53. Highs 79 to 84. West winds 5 to 15 mph. .FRIDAY...Cooler. Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 43 to 48. Highs 66 to 71. North winds 5 to 15 mph. .SATURDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 44 to 49. Highs 65 to 70. .SUNDAY...Mostly sunny. Scattered showers and isolated thunderstorms. Highs 67 to 72. $$ MTZ129-272215- Crow Indian Reservation/Bighorn Canyon Rec Area- 228 AM MDT Mon Apr 27 2020 .Today... * Sky/weather...........Mostly sunny in the morning, then cloudy with scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......58-68 at 5000 feet...52-58 at 7000 feet. * 24 hr trend.........2 degrees warmer. * Min humidity..........26-36 percent at 5000 feet...36-41 percent at 7000 feet. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............West 10 to 20 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................30 percent. * Haines index..........2. .TONIGHT... * Sky/weather...........Partly cloudy. Numerous rain showers and isolated thunderstorms in the evening, then scattered rain showers and isolated thunderstorms overnight. * Min temperature.......39-47 at 5000 feet...34-39 at 7000 feet. * 24 hr trend.........Unchanged. * Max humidity..........57-67 percent at 5000 feet...67-77 percent at 7000 feet. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. * Ridgetop.............Northwest 30 to 45 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................20 percent. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......54-64 at 5000 feet...47-52 at 7000 feet. * 24 hr trend.........7 degrees cooler. * Min humidity..........22-32 percent at 5000 feet...29-37 percent at 7000 feet. * 24 hr trend.........8 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 15 to 25 mph with gusts to around 35 mph. * Ridgetop.............Northwest 30 to 45 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........2. .Forecast days 3 through 7...... .TUESDAY NIGHT...Clear. Lows 38 to 45. West winds 5 to 15 mph. .WEDNESDAY...Warmer. Partly cloudy. Lows 50 to 56. Highs 67 to 77. South winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 44 to 51. Highs 70 to 80. West winds 5 to 15 mph. .FRIDAY...Cooler. Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 40 to 47. Highs 57 to 67. North winds 5 to 15 mph. .SATURDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 41 to 46. Highs 56 to 66. .SUNDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 59 to 69. $$ MTZ130-272215- Northern Rosebud/Northern Treasure Counties- 228 AM MDT Mon Apr 27 2020 .Today... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......72-77. * 24 hr trend.........2 degrees warmer. * Min humidity..........19-24 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * Plains...............Light winds in the morning becoming west 5 to 10 mph in the afternoon. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Zero. * Haines index..........2. .TONIGHT... * Sky/weather...........Mostly clear. Scattered rain showers and isolated thunderstorms in the evening, then isolated showers and thunderstorms overnight. * Min temperature.......44-49. * 24 hr trend.........4 degrees warmer. * Max humidity..........63-68 percent. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Less than 10 percent. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......66-71. * 24 hr trend.........6 degrees cooler. * Min humidity..........14-19 percent. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Plains...............Northwest winds 15 to 25 mph with gusts to around 35 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Clear. Lows 38 to 43. Southwest winds 5 to 15 mph. .WEDNESDAY...Warmer. Partly cloudy. Lows 50 to 55. Highs 79 to 84. South winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 49 to 54. Highs 83 to 88. West winds 5 to 10 mph. .FRIDAY...Not as warm. Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 43 to 48. Highs 70 to 75. Northwest winds 5 to 15 mph. .SATURDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 44 to 49. Highs 69 to 74. .SUNDAY...Mostly sunny. Scattered showers and isolated thunderstorms. Highs 70 to 75. $$ MTZ131-272215- Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest- 228 AM MDT Mon Apr 27 2020 .Today... * Sky/weather...........Mostly sunny in the morning, then mostly cloudy with scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......68-73. * 24 hr trend.........Unchanged. * Min humidity..........23-28 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............West 10 to 20 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Less than 10 percent. * Haines index..........3. .TONIGHT... * Sky/weather...........Mostly clear. Scattered rain showers and isolated thunderstorms in the evening, then isolated showers and thunderstorms overnight. * Min temperature.......42-47. * 24 hr trend.........3 degrees warmer. * Max humidity..........69-74 percent. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. * Ridgetop.............Northwest 25 to 40 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Less than 10 percent. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......59-64. * 24 hr trend.........9 degrees cooler. * Min humidity..........20-25 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 15 to 25 mph with gusts to around 35 mph. * Ridgetop.............Northwest 30 to 45 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........2. .Forecast days 3 through 7...... .TUESDAY NIGHT...Clear. Lows 36 to 41. West winds 5 to 15 mph. .WEDNESDAY...Warmer. Partly cloudy. Lows 48 to 53. Highs 74 to 79. South winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Isolated showers and thunderstorms. Lows 47 to 52. Highs 80 to 85. West winds 5 to 15 mph. .FRIDAY...Cooler. Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 43 to 48. Highs 65 to 70. Northwest winds 5 to 15 mph. .SATURDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 42 to 47. Highs 62 to 67. .SUNDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 66 to 71. $$ MTZ132-272215- Custer County- 228 AM MDT Mon Apr 27 2020 .Today... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......67-72. * 24 hr trend.........3 degrees warmer. * Min humidity..........22-27 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Zero. * Haines index..........2. .TONIGHT... * Sky/weather...........Mostly cloudy with scattered rain showers and isolated thunderstorms in the evening, then mostly clear overnight. * Min temperature.......42-47. * 24 hr trend.........4 degrees warmer. * Max humidity..........70-75 percent. * 24 hr trend.........16 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................20 percent. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......58-63. * 24 hr trend.........9 degrees cooler. * Min humidity..........21-26 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Plains...............Northwest winds 15 to 25 mph with gusts to around 35 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Colder, clear. Lows 34 to 39. Northwest winds 5 to 15 mph with gusts to around 30 mph. .WEDNESDAY...Warmer. Mostly clear. Lows 47 to 52. Highs 70 to 75. South winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 48 to 53. Highs 78 to 83. West winds 5 to 15 mph. .FRIDAY...Cooler. Partly cloudy. Isolated showers and thunderstorms. Lows 42 to 47. Highs 65 to 70. Northwest winds 5 to 15 mph with gusts to around 30 mph. .SATURDAY...Mostly cloudy. Isolated showers and thunderstorms. Lows 42 to 47. Highs 62 to 67. .SUNDAY...Mostly sunny. Scattered showers and isolated thunderstorms. Highs 63 to 68. $$ MTZ133-272215- Sioux Ranger District Custer National Forest- 228 AM MDT Mon Apr 27 2020 .Today... * Sky/weather...........Mostly sunny in the morning, then mostly cloudy with isolated thunderstorms and rain showers in the afternoon. * Max temperature.......70-75. * 24 hr trend.........5 degrees warmer. * Min humidity..........20-25 percent. * 24 hr trend.........6 percent drier. * Wind (20 ft) * Plains...............Southwest winds 5 to 15 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Zero. * Haines index..........3. .TONIGHT... * Sky/weather...........Mostly cloudy with scattered rain showers and isolated thunderstorms in the evening, then mostly clear overnight. * Min temperature.......42-47. * 24 hr trend.........4 degrees warmer. * Max humidity..........78-83 percent. * 24 hr trend.........20 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................30 percent. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......59-64. * 24 hr trend.........11 degrees cooler. * Min humidity..........25-30 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * Plains...............Windy. Northwest winds 15 to 30 mph with gusts to around 45 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .TUESDAY NIGHT...Colder, clear. Lows 33 to 38. Northwest winds 10 to 20 mph with gusts to around 40 mph. .WEDNESDAY...Warmer. Mostly clear. Lows 43 to 48. Highs 70 to 75. South winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Isolated showers and thunderstorms. Lows 48 to 53. Highs 80 to 85. Southeast winds 5 to 15 mph. .FRIDAY...Not as warm. Partly cloudy. Scattered showers and isolated thunderstorms. Lows 43 to 48. Highs 68 to 73. Northwest winds 10 to 20 mph. .SATURDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 40 to 45. Highs 62 to 67. .SUNDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 64 to 69. $$ WYZ274-272215- Sheridan County- 228 AM MDT Mon Apr 27 2020 .Today... * Sky/weather...........Mostly sunny in the morning, then mostly cloudy with scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......68-73. * 24 hr trend.........1 degree warmer. * Min humidity..........25-30 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Slope/valley.........Light winds in the morning becoming west 5 to 10 mph in the afternoon. * Ridgetop.............West 5 to 15 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................Less than 10 percent. * Haines index..........3. .TONIGHT... * Sky/weather...........Mostly clear. Scattered rain showers and isolated thunderstorms in the evening, then scattered rain showers, snow showers and isolated thunderstorms overnight. * Min temperature.......37-42. * 24 hr trend.........1 degree cooler. * Max humidity..........71-76 percent. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............Northwest 25 to 40 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................10 percent. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......60-65. * 24 hr trend.........8 degrees cooler. * Min humidity..........20-25 percent. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 10 to 20 mph with gusts to around 30 mph. * Ridgetop.............Northwest 30 to 45 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........2. .Forecast days 3 through 7...... .TUESDAY NIGHT...Clear. Lows 35 to 40. West winds 5 to 15 mph. .WEDNESDAY...Warmer. Partly cloudy. Lows 46 to 51. Highs 74 to 79. South winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Isolated showers and thunderstorms. Lows 44 to 49. Highs 79 to 84. West winds 5 to 10 mph. .FRIDAY...Cooler. Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 40 to 45. Highs 65 to 70. Northwest winds 5 to 10 mph. .SATURDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 39 to 44. Highs 62 to 67. .SUNDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 67 to 72. $$ WYZ284-272215- Bighorn National Forest- 228 AM MDT Mon Apr 27 2020 .Today... * Sky/weather...........Mostly sunny in the morning, then mostly cloudy with scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......50-55. * 24 hr trend.........3 degrees warmer. * Min humidity..........36-41 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * At Burgess Jct.......Southwest winds 10 to 20 mph. Gusts up to 30 mph in the afternoon. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................30 percent. * Haines index..........3. .TONIGHT... * Sky/weather...........Mostly clear. Numerous rain showers with possible snow showers and thunderstorms in the evening, then scattered snow showers overnight. * Min temperature.......28-33. * 24 hr trend.........Unchanged. * Max humidity..........73-78 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * At Burgess Jct.......West winds 5 to 15 mph. * LAL...................2...1 to 8 strikes/15 min/cell. * CWR...................30 percent. .TUESDAY... * Sky/weather...........Sunny. Isolated rain showers and snow showers in the morning. * Max temperature.......44-49. * 24 hr trend.........6 degrees cooler. * Min humidity..........27-32 percent. * 24 hr trend.........9 percent drier. * Wind (20 ft) * At Burgess Jct.......Northwest winds 10 to 20 mph with gusts to around 30 mph. * LAL...................1...no thunderstorms. * CWR...................Less than 10 percent. * Haines index..........2. .Forecast days 3 through 7...... .TUESDAY NIGHT...Clear. Lows 28 to 33. West winds 5 to 15 mph. .WEDNESDAY...Warmer. Partly cloudy. Lows 38 to 43. Highs 58 to 63. Southwest winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 34 to 39. Highs 62 to 67. Southwest winds 5 to 15 mph. .FRIDAY...Cooler. Mostly cloudy. Scattered showers, snow showers and isolated thunderstorms. Lows 30 to 35. Highs 51 to 56. Northwest winds 5 to 15 mph. .SATURDAY...Mostly cloudy. Scattered showers, snow showers and isolated thunderstorms. Lows 29 to 34. Highs 49 to 54. .SUNDAY...Partly sunny. Scattered showers, isolated thunderstorms and snow showers. Highs 52 to 57. $$ weather.gov/billings