022 
FNUS55 KPSR 212047
FWFPSR

Fire Weather Planning Forecast for Southwest and South-Central
Arizona and Southeast California
National Weather Service Phoenix AZ
147 PM MST Sun Sep 21 2025

.DISCUSSION...
Increasing moisture will result in chances for showers through
Monday morning, however wetting rainfall will likely be extremely
limited. Modest drying will arrive Tuesday eliminating rainfall
chances. Minimum humidity levels will generally fall into a 25-35%
range following good to excellent overnight recovery of 50-90%.
Winds will remain rather light with only modest afternoon upslope
gusts. 

...Thunderstorms imply gusty winds...

Note...Additional Fire Weather Forecast information can be found
in the Area Forecast Discussion. See product PHXAFDPSR.

AZZ132-220900-
West Central Deserts/Northwest Maricopa County/Greater Phoenix
Area/Southwest Deserts/Southwest Maricopa County/
Northwest and North-Central Pinal County-
Phoenix BLM/YUM BLM/CAZ-CRZ-
147 PM MST Sun Sep 21 2025

.TONIGHT...
* Sky/weather.....................Mostly cloudy in the evening 
  becoming partly cloudy after midnight. Slight chance of showers 
  and thunderstorms . 
* Min Temperature.................72-82. 
*    24 hr trend..................Little change. 
* Max Humidity....................52-67 pct. 
*    24 hr trend..................Little RH change. 
* Winds - 20 foot...Slope/Valley..North 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 10 to 20 mph. 
* Chance of Precip................20 percent. 
* CWR (>= 0.10 IN)................10 percent. 
* Chance of Thunder...............15 percent. 

.MONDAY...
* Sky/weather.....................Mostly sunny. Slight chance of 
  showers and thunderstorms. 
* Max Temperature.................90-98. 
*    24 hr trend..................3 degrees cooler. 
* Min Humidity....................28-37 pct. 
*    24 hr trend..................3 pct wetter. 
* Winds - 20 foot...Slope/Valley..North 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 10 to 15 mph. 
* Chance of Precip................20 percent. 
* CWR (>= 0.10 IN)................10 percent west portion...0 
  percent east portion. 
* Chance of Thunder...............15 percent. 
* Mixing Height for Phoenix.......6900 ft AGL. 
* Transport Wind for Phoenix......West 5 knots. 
* Dispersion for Phoenix..........Fair. 

.MONDAY NIGHT...
* Sky/weather.....................Mostly clear. 
* Min Temperature.................73-83. 
*    24 hr trend..................Little change. 
* Max Humidity....................49-62 pct. 
*    24 hr trend..................5 pct drier. 
* Winds - 20 foot...Slope/Valley..North 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 10 to 15 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............3 percent. 

.TUESDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................96-103. 
*    24 hr trend..................5 degrees warmer. 
* Min Humidity....................24-29 pct. 
*    24 hr trend..................6 pct drier. 
* Winds - 20 foot...Slope/Valley..Northeast 5 to 10 mph in the 
  morning becoming northwest in the afternoon. 
* Winds...10000 FT MSL............South 5 to 15 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............2 percent. 
* Mixing Height for Phoenix.......8000 ft AGL. 
* Transport Wind for Phoenix......West 4 knots. 
* Dispersion for Phoenix..........Fair. 


.EXTENDED...
.WEDNESDAY...Clear. Lows 76-86. Highs 98-106. Northeast winds
5 to 10 mph. 
.THURSDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows 72-82. Highs 97-104. South winds 5 to 15 mph.
.FRIDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows 69-79. Highs 90-98. South winds 5 to 15 mph. 
.SATURDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows 69-79. Highs 87-95. 
.SUNDAY...Mostly clear. Lows 69-79. Highs 89-96. 

$$

AZZ131-CAZ231-220900-
Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ-
Lower Colorado River Valley CA-
147 PM MST Sun Sep 21 2025 /147 PM PDT Sun Sep 21 2025/

.TONIGHT...
* Sky/weather.....................Mostly cloudy. Slight chance of 
  showers in the evening. slight chance of thunderstorms . chance 
  of showers after midnight. 
* Min Temperature.................73-80. 
*    24 hr trend..................Little change. 
* Max Humidity....................56-76 pct. 
*    24 hr trend..................Little RH change. 
* Winds - 20 foot...Slope/Valley..North 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 10 to 20 mph. 
* Chance of Precip................40 percent. 
* CWR (>= 0.10 IN)................15 percent. 
* Chance of Thunder...............20 percent. 

.MONDAY...
* Sky/weather.....................Partly sunny. Slight chance of 
  showers and thunderstorms in the morning. 
* Max Temperature.................91-97. 
*    24 hr trend..................3 degrees cooler. 
* Min Humidity....................32-41 pct. 
*    24 hr trend..................7 pct wetter. 
* Winds - 20 foot...Slope/Valley..North 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 10 to 20 mph. 
* Chance of Precip................20 percent in the morning 
  becoming 0 percent in the afternoon. 
* CWR (>= 0.10 IN)................10 percent. 
* Chance of Thunder...............15 percent. 
* Mixing Height for Yuma..........7400 ft AGL. 
* Transport Wind for Yuma.........Northwest 7 knots. 
* Dispersion for Yuma.............Fair. 

.MONDAY NIGHT...
* Sky/weather.....................Mostly clear. 
* Min Temperature.................72-79. 
*    24 hr trend..................Little change. 
* Max Humidity....................56-76 pct. 
*    24 hr trend..................Little RH change. 
* Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. 
* Winds...10000 FT MSL............South 10 to 15 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............2 percent. 

.TUESDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................98-103. 
*    24 hr trend..................7 degrees warmer. 
* Min Humidity....................27-31 pct. 
*    24 hr trend..................7 pct drier. 
* Winds - 20 foot...Slope/Valley..North 5 to 15 mph. 
* Winds...10000 FT MSL............South 10 to 15 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............4 percent. 
* Mixing Height for Yuma..........8400 ft AGL. 
* Transport Wind for Yuma.........South 5 knots. 
* Dispersion for Yuma.............Marginal. 


.EXTENDED...
.WEDNESDAY...Clear. Lows 74-81. Highs 99-104. Northwest winds
5 to 15 mph. 
.THURSDAY...Clear. Lows 70-80. Highs 98-103. Southwest winds 5 to
15 mph. 
.FRIDAY...Mostly clear. Lows 69-75. Highs 93-98. Southwest winds
5 to 15 mph. 
.SATURDAY...Mostly clear. Lows 69-75. Highs 91-96. 
.SUNDAY...Mostly clear. Lows 69-76. Highs 92-97. 

$$

AZZ133-220900-
Southern Gila County/Tonto National Forest Foothills-
Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/
CAZ-
147 PM MST Sun Sep 21 2025

.TONIGHT...
* Sky/weather.....................Mostly cloudy in the evening 
  becoming partly cloudy after midnight. Slight chance of showers 
  and thunderstorms. 
* Min Temperature.................60-75. 
*    24 hr trend..................Little change. 
* Max Humidity....................58-78 pct. 
*    24 hr trend..................7 pct wetter. 
* Winds - 20 foot...Slope/Valley..South 5 to 10 mph in the evening 
  becoming northeast after midnight. 
* Winds...10000 FT MSL............Southwest 10 to 20 mph. 
* Chance of Precip................20 percent. 
* CWR (>= 0.10 IN)................5 percent. 
* Chance of Thunder...............15 percent. 

.MONDAY...
* Sky/weather.....................Partly sunny. Slight chance of 
  showers and thunderstorms . 
* Max Temperature.................81-95. 
*    24 hr trend..................3 degrees cooler. 
* Min Humidity....................27-40 pct. 
*    24 hr trend..................6 pct wetter. 
* Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning 
  becoming northwest in the afternoon. 
* Winds...10000 FT MSL............Southwest 10 to 20 mph. 
* Chance of Precip................20 percent. 
* CWR (>= 0.10 IN)................5 percent. 
* Chance of Thunder...............20 percent. 

.MONDAY NIGHT...
* Sky/weather.....................Mostly clear. 
* Min Temperature.................59-76. 
*    24 hr trend..................Little change. 
* Max Humidity....................53-78 pct. 
*    24 hr trend..................4 pct drier. 
* Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the 
  evening becoming northeast after midnight. 
* Winds...10000 FT MSL............West 10 to 15 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............5 percent. 

.TUESDAY...
* Sky/weather.....................Mostly sunny. Slight chance of 
  showers and thunderstorms in the afternoon. 
* Max Temperature.................84-99. 
*    24 hr trend..................4 degrees warmer. 
* Min Humidity....................23-32 pct. 
*    24 hr trend..................7 pct drier. 
* Winds - 20 foot...Slope/Valley..Northeast 5 to 10 mph in the 
  morning becoming west in the afternoon. 
* Winds...10000 FT MSL............West 5 to 15 mph in the morning 
  becoming light and variable in the afternoon. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............7 percent. 


.EXTENDED...
.WEDNESDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows 59-78. Highs 85-101. East winds 5 to 15 mph. 
.THURSDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows 59-78. Highs 85-100. Southeast winds 5 to
15 mph. 
.FRIDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows 54-74. Highs 77-93. Southeast winds 5 to
15 mph. 
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows 54-70. Highs 74-89. 
.SUNDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows 54-71. Highs 74-90. 

$$

CAZ232-220900-
Imperial County And Eastern Riverside County-
147 PM PDT Sun Sep 21 2025

.TONIGHT...
* Sky/weather.....................Mostly cloudy. Chance of showers 
  and slight chance of thunderstorms. 
* Min Temperature.................72-79. 
*    24 hr trend..................Little change. 
* Max Humidity....................56-69 pct. 
*    24 hr trend..................14 pct wetter. 
* Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 10 to 20 mph. 
* Chance of Precip................40 percent. 
* CWR (>= 0.10 IN)................15 percent. 
* Chance of Thunder...............20 percent. 

.MONDAY...
* Sky/weather.....................Partly sunny. Slight chance of 
  showers and thunderstorms in the morning. 
* Max Temperature.................86-94. 
*    24 hr trend..................Little change. 
* Min Humidity....................31-41 pct. 
*    24 hr trend..................11 pct wetter. 
* Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning 
  becoming east in the afternoon. 
* Winds...10000 FT MSL............Southwest 10 to 20 mph. 
* Chance of Precip................20 percent in the morning 
  becoming 0 percent in the afternoon. 
* CWR (>= 0.10 IN)................5 percent. 
* Chance of Thunder...............10 percent. 

.MONDAY NIGHT...
* Sky/weather.....................Mostly clear. 
* Min Temperature.................73-80. 
*    24 hr trend..................Little change. 
* Max Humidity....................50-69 pct. 
*    24 hr trend..................4 pct drier. 
* Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 10 to 15 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............3 percent. 

.TUESDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................93-100. 
*    24 hr trend..................6 degrees warmer. 
* Min Humidity....................25-35 pct. 
*    24 hr trend..................5 pct drier. 
* Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning 
  becoming east in the afternoon. 
* Winds...10000 FT MSL............Light and variable in the morning 
  becoming southeast 5 to 15 mph in the afternoon. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............5 percent. 


.EXTENDED...
.WEDNESDAY...Clear. Lows 74-81. Highs 93-102. West winds 5 to
15 mph. 
.THURSDAY...Clear. Lows 69-79. Highs 92-100. West winds 5 to
15 mph. 
.FRIDAY...Mostly clear. Lows 68-74. Highs 87-96. West winds 5 to
15 mph. 
.SATURDAY...Mostly clear. Lows 68-75. Highs 87-95. 
.SUNDAY...Mostly clear. Lows 70-77. Highs 87-96. 

$$

CAZ230-220900-
Joshua Tree National Park-
147 PM PDT Sun Sep 21 2025

.TONIGHT...
* Sky/weather.....................Mostly cloudy in the evening 
  becoming partly cloudy after midnight. Chance of showers in the 
  evening becoming slight chance of showers after midnight. 
* Min Temperature.................61-73. 
*    24 hr trend..................Little change. 
* Max Humidity....................52-63 pct. 
*    24 hr trend..................7 pct wetter. 
* Winds - 20 foot...Slope/Valley..West 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 10 to 20 mph. 
* Chance of Precip................30 percent. 
* CWR (>= 0.10 IN)................10 percent. 
* Chance of Thunder...............10 percent. 

.MONDAY...
* Sky/weather.....................Mostly sunny. 
* Max Temperature.................78-90. 
*    24 hr trend..................Little change. 
* Min Humidity....................30-39 pct. 
*    24 hr trend..................6 pct wetter. 
* Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning 
  becoming east in the afternoon. 
* Winds...10000 FT MSL............South 5 to 15 mph. 
* Chance of Precip................5 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............5 percent. 

.MONDAY NIGHT...
* Sky/weather.....................Mostly clear. 
* Min Temperature.................64-74. 
*    24 hr trend..................Little change. 
* Max Humidity....................49-60 pct. 
*    24 hr trend..................3 pct drier. 
* Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the 
  evening becoming northwest after midnight. 
* Winds...10000 FT MSL............Light and variable. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............3 percent. 

.TUESDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................82-95. 
*    24 hr trend..................5 degrees warmer. 
* Min Humidity....................27-37 pct. 
*    24 hr trend..................Little RH change. 
* Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning 
  becoming southeast in the afternoon. 
* Winds...10000 FT MSL............Light and variable in the morning 
  becoming southeast 5 to 15 mph in the afternoon. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............8 percent. 


.EXTENDED...
.WEDNESDAY...Clear. Lows 62-76. Highs 83-95. West winds 5 to
15 mph. 
.THURSDAY...Clear. Lows 59-75. Highs 80-95. West winds 5 to
15 mph. 
.FRIDAY...Mostly clear. Lows 59-71. Highs 77-90. West winds 5 to
15 mph. 
.SATURDAY...Mostly clear. Lows 60-71. Highs 77-89. 
.SUNDAY...Mostly clear. Lows 60-71. Highs 77-90. 

$$

.8 TO 10 DAY OUTLOOK...Monday September 29th through Wednesday 
October 1st: Above normal temperatures and above median 
precipitation.