462 
FNUS55 KPSR 272035
FWFPSR

Fire Weather Planning Forecast for Southwest and South-Central
Arizona and Southeast California
National Weather Service Phoenix AZ
135 PM MST Sat Sep 27 2025

.DISCUSSION...
As a low pressure system meanders over Southern California, chances
for wetting rainfall and isolated to scattered thunderstorms 
continue for today, mainly focused over the high terrain of the 
eastern districts (20-50% CWR) and fairly widespread across the 
western districts (30-60% CWR). Rain chances will end across the 
area by Sunday evening, with only lingering chances over the AZ 
high terrain Sunday during the day. MinRHs will continue in the 
30-45% range and temperatures in a 5-8 degrees below normal range 
areawide today and Sunday, with humidity gradually decreasing and 
temperatures gradually warming early next week.

...Thunderstorms imply gusty winds...

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

AZZ132-280845-
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-
135 PM MST Sat Sep 27 2025

.TONIGHT...
* Sky/weather.....................Partly cloudy. Chance of 
  thunderstorms in the evening. chance of showers . slight chance 
  of thunderstorms after midnight. 
* Min Temperature.................65-75. 
*    24 hr trend..................Little change. 
* Max Humidity....................70-85 pct. 
*    24 hr trend..................5 pct wetter. 
* Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the evening 
  becoming southeast after midnight. 
* Winds...10000 FT MSL............South 10 to 20 mph. 
* Chance of Precip................40 percent. 
* CWR (>= 0.10 IN)................20 percent. 
* Chance of Thunder...............32 percent. 

.SUNDAY...
* Sky/weather.....................Mostly sunny. Slight chance of 
  showers and thunderstorms. 
* Max Temperature.................82-90. 
*    24 hr trend..................Little change. 
* Min Humidity....................33-45 pct. 
*    24 hr trend..................Little change. 
* Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the 
  morning becoming southwest in the afternoon. 
* Winds...10000 FT MSL............Southwest 10 to 15 mph. 
* Chance of Precip................30 percent. 
* CWR (>= 0.10 IN)................10 percent west portion...0 
  percent east portion. 
* Chance of Thunder...............18 percent. 
* Mixing Height for Phoenix.......8800 ft AGL. 
* Transport Wind for Phoenix......Southwest 4 knots. 
* Dispersion for Phoenix..........Fair. 

.SUNDAY NIGHT...
* Sky/weather.....................Mostly clear. 
* Min Temperature.................66-76. 
*    24 hr trend..................Little change. 
* Max Humidity....................62-75 pct. 
*    24 hr trend..................10 pct drier. 
* Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the evening 
  becoming northeast after midnight. 
* Winds...10000 FT MSL............Southwest 5 to 15 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............1 percent. 

.MONDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................86-93. 
*    24 hr trend..................3 degrees warmer. 
* Min Humidity....................26-35 pct. 
*    24 hr trend..................8 pct drier. 
* Winds - 20 foot...Slope/Valley..East 5 to 10 mph in the morning 
  becoming south in the afternoon. 
* Winds...10000 FT MSL............Light and variable in the morning 
  becoming southwest 5 to 15 mph in the afternoon. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............0 percent. 
* Mixing Height for Phoenix.......8400 ft AGL. 
* Transport Wind for Phoenix......Southwest 3 knots. 
* Dispersion for Phoenix..........Fair. 


.EXTENDED...
.TUESDAY...Mostly clear. Lows 66-76. Highs 89-96. South winds
5 to 10 mph. 
.WEDNESDAY...Mostly clear. Lows 67-77. Highs 89-96. South winds
5 to 10 mph. 
.THURSDAY...Clear. Lows 67-77. Highs 92-99. Southeast winds 5 to
10 mph. 
.FRIDAY...Clear. Lows 67-77. Highs 92-99. 
.SATURDAY...Clear. Lows 65-75. Highs 90-97. 

$$

AZZ131-CAZ231-280845-
Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ-
Lower Colorado River Valley CA-
135 PM MST Sat Sep 27 2025 /135 PM PDT Sat Sep 27 2025/

.TONIGHT...
* Sky/weather.....................Partly cloudy. Chance of showers 
  and thunderstorms in the evening becoming slight chance of 
  showers and thunderstorms after midnight. 
* Min Temperature.................66-72. 
*    24 hr trend..................Little change. 
* Max Humidity....................77-97 pct. 
*    24 hr trend..................10 pct wetter. 
* Winds - 20 foot...Slope/Valley..East 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 10 to 15 mph. 
* Chance of Precip................50 percent. 
* CWR (>= 0.10 IN)................20 percent. 
* Chance of Thunder...............34 percent. 

.SUNDAY...
* Sky/weather.....................Mostly sunny. Slight chance of 
  showers and thunderstorms in the morning. 
* Max Temperature.................86-91. 
*    24 hr trend..................Little change. 
* Min Humidity....................36-43 pct. 
*    24 hr trend..................4 pct drier. 
* Winds - 20 foot...Slope/Valley..Northeast 5 to 10 mph in the 
  morning becoming southwest in the afternoon. 
* Winds...10000 FT MSL............Light and variable in the morning 
  becoming west 5 to 15 mph in the afternoon. 
* Chance of Precip................10 percent in the morning 
  becoming 0 percent in the afternoon. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............11 percent. 
* Mixing Height for Yuma..........8000 ft AGL. 
* Transport Wind for Yuma.........South 4 knots. 
* Dispersion for Yuma.............Marginal. 

.SUNDAY NIGHT...
* Sky/weather.....................Mostly clear. 
* Min Temperature.................67-73. 
*    24 hr trend..................Little change. 
* Max Humidity....................70-88 pct. 
*    24 hr trend..................7 pct drier. 
* Winds - 20 foot...Slope/Valley..South 5 to 10 mph in the evening 
  becoming east after midnight. 
* Winds...10000 FT MSL............Northwest 5 to 15 mph in the 
  evening becoming light and variable after midnight. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............0 percent. 

.MONDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................89-94. 
*    24 hr trend..................4 degrees warmer. 
* Min Humidity....................31-36 pct. 
*    24 hr trend..................6 pct drier. 
* Winds - 20 foot...Slope/Valley..East 5 to 10 mph in the morning 
  becoming south in the afternoon. 
* Winds...10000 FT MSL............Light and variable in the morning 
  becoming southwest 5 to 15 mph in the afternoon. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............0 percent. 
* Mixing Height for Yuma..........7500 ft AGL. 
* Transport Wind for Yuma.........South 5 knots. 
* Dispersion for Yuma.............Fair. 


.EXTENDED...
.TUESDAY...Mostly clear. Lows 65-74. Highs 91-96. South winds
5 to 15 mph. 
.WEDNESDAY...Mostly clear. Lows 65-72. Highs 91-96. Southwest
winds 5 to 10 mph. 
.THURSDAY...Clear. Lows 66-72. Highs 94-99. Southwest winds 5 to
10 mph. 
.FRIDAY...Clear. Lows 65-72. Highs 93-98. 
.SATURDAY...Clear. Lows 63-71. Highs 91-96. 

$$

AZZ133-280845-
Southern Gila County/Tonto National Forest Foothills-
Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/
CAZ-
135 PM MST Sat Sep 27 2025

.TONIGHT...
* Sky/weather.....................Partly cloudy. Chance of showers 
  and slight chance of thunderstorms. 
* Min Temperature.................53-67. 
*    24 hr trend..................Little change. 
* Max Humidity....................71-90 pct. 
*    24 hr trend..................12 pct drier. 
* Winds - 20 foot...Slope/Valley..East 5 to 15 mph. 
* Winds...10000 FT MSL............South 15 to 25 mph. 
* Chance of Precip................40 percent. 
* CWR (>= 0.10 IN)................20 percent. 
* Chance of Thunder...............24 percent. 

.SUNDAY...
* Sky/weather.....................Partly sunny. Slight chance of 
  showers and thunderstorms. 
* Max Temperature.................71-85. 
*    24 hr trend..................Little change. 
* Min Humidity....................33-47 pct. 
*    24 hr trend..................8 pct drier. 
* Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the 
  morning becoming southwest in the afternoon. 
* Winds...10000 FT MSL............South 10 to 20 mph. 
* Chance of Precip................30 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............20 percent. 

.SUNDAY NIGHT...
* Sky/weather.....................Mostly clear. 
* Min Temperature.................51-66. 
*    24 hr trend..................Little change. 
* Max Humidity....................59-82 pct. 
*    24 hr trend..................11 pct drier. 
* Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the evening 
  becoming northeast after midnight. 
* Winds...10000 FT MSL............Southwest 10 to 15 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............2 percent. 

.MONDAY...
* Sky/weather.....................Mostly sunny. 
* Max Temperature.................74-89. 
*    24 hr trend..................3 degrees warmer. 
* Min Humidity....................27-39 pct. 
*    24 hr trend..................6 pct drier. 
* Winds - 20 foot...Slope/Valley..East 5 to 10 mph in the morning 
  becoming south in the afternoon. 
* Winds...10000 FT MSL............South 10 to 15 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............0 percent. 


.EXTENDED...
.TUESDAY...Mostly clear. Lows 53-68. Highs 76-91. East winds 5 to
15 mph. 
.WEDNESDAY...Mostly clear. Lows 53-69. Highs 78-92. Northeast
winds 5 to 10 mph. 
.THURSDAY...Clear. Lows 54-71. Highs 81-95. East winds 5 to
10 mph. 
.FRIDAY...Mostly clear. Lows 54-71. Highs 81-95. 
.SATURDAY...Clear. Lows 54-70. Highs 78-92. 

$$

CAZ232-280845-
Imperial County And Eastern Riverside County-
135 PM PDT Sat Sep 27 2025

.TONIGHT...
* Sky/weather.....................Mostly clear. Slight chance of 
  thunderstorms in the evening. slight chance of showers . 
* Min Temperature.................65-72. 
*    24 hr trend..................Little change. 
* Max Humidity....................68-83 pct. 
*    24 hr trend..................7 pct wetter. 
* Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. 
* Winds...10000 FT MSL............West 10 to 15 mph. 
* Chance of Precip................30 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............22 percent. 

.SUNDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................82-91. 
*    24 hr trend..................Little change. 
* Min Humidity....................31-43 pct. 
*    24 hr trend..................5 pct drier. 
* Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the 
  morning becoming south in the afternoon. 
* Winds...10000 FT MSL............Light and variable in the morning 
  becoming west 5 to 15 mph in the afternoon. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............3 percent. 

.SUNDAY NIGHT...
* Sky/weather.....................Clear. 
* Min Temperature.................68-74. 
*    24 hr trend..................Little change. 
* Max Humidity....................58-76 pct. 
*    24 hr trend..................8 pct drier. 
* Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the 
  evening becoming northwest after midnight. 
* Winds...10000 FT MSL............Northwest 5 to 15 mph in the 
  evening becoming light and variable after midnight. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............0 percent. 

.MONDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................85-94. 
*    24 hr trend..................3 degrees warmer. 
* Min Humidity....................28-38 pct. 
*    24 hr trend..................3 pct drier. 
* Winds - 20 foot...Slope/Valley..Northeast 5 to 10 mph in the 
  morning becoming south in the afternoon. 
* Winds...10000 FT MSL............Light and variable in the morning 
  becoming southwest 5 to 15 mph in the afternoon. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............0 percent. 


.EXTENDED...
.TUESDAY...Mostly clear. Lows 65-74. Highs 86-95. Southwest winds
5 to 15 mph. 
.WEDNESDAY...Mostly clear. Lows 65-72. Highs 86-94. West winds
5 to 10 mph. 
.THURSDAY...Clear. Lows 67-72. Highs 88-96. West winds 5 to
10 mph. 
.FRIDAY...Clear. Lows 66-72. Highs 87-96. 
.SATURDAY...Clear. Lows 64-71. Highs 86-95. 

$$

CAZ230-280845-
Joshua Tree National Park-
135 PM PDT Sat Sep 27 2025

.TONIGHT...
* Sky/weather.....................Mostly clear. Slight chance of 
  showers and thunderstorms in the evening. 
* Min Temperature.................55-66. 
*    24 hr trend..................Little change. 
* Max Humidity....................72-86 pct. 
*    24 hr trend..................8 pct wetter. 
* Winds - 20 foot...Slope/Valley..South 5 to 10 mph in the evening 
  becoming mostly downslope/downvalley after midnight. 
* Winds...10000 FT MSL............Northwest 5 to 15 mph. 
* Chance of Precip................20 percent in the evening 
  becoming 0 percent after midnight. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............17 percent. 

.SUNDAY...
* Sky/weather.....................Mostly sunny. 
* Max Temperature.................72-84. 
*    24 hr trend..................3 degrees warmer. 
* Min Humidity....................38-49 pct. 
*    24 hr trend..................7 pct drier. 
* Winds - 20 foot...Slope/Valley..South 5 to 15 mph. 
* Winds...10000 FT MSL............Northwest 5 to 15 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............6 percent. 

.SUNDAY NIGHT...
* Sky/weather.....................Clear. 
* Min Temperature.................57-69. 
*    24 hr trend..................3 degrees warmer. 
* Max Humidity....................65-77 pct. 
*    24 hr trend..................8 pct drier. 
* Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the 
  evening becoming mostly downslope/downvalley after midnight. 
* Winds...10000 FT MSL............North 5 to 15 mph in the evening 
  becoming light and variable after midnight. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............0 percent. 

.MONDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................75-87. 
*    24 hr trend..................3 degrees warmer. 
* Min Humidity....................33-46 pct. 
*    24 hr trend..................4 pct drier. 
* Winds - 20 foot...Slope/Valley..South 5 to 15 mph. 
* Winds...10000 FT MSL............Light and variable in the morning 
  becoming southwest 5 to 15 mph in the afternoon. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............0 percent. 


.EXTENDED...
.TUESDAY...Mostly clear. Lows 55-69. Highs 75-89. Southwest winds
5 to 15 mph. 
.WEDNESDAY...Mostly clear. Lows 55-67. Highs 76-88. West winds
5 to 10 mph. 
.THURSDAY...Clear. Lows 57-67. Highs 78-91. Southwest winds 5 to
10 mph. 
.FRIDAY...Clear. Lows 56-67. Highs 76-89. 
.SATURDAY...Clear. Lows 54-66. Highs 74-87. 

$$

.8 TO 10 DAY OUTLOOK...Sunday October 5th through Tuesday October
7th: Above normal temperatures and near median precipitation.