393 
FNUS55 KPSR 271058
FWFPSR

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

.DISCUSSION...
As a low pressure system meanders over Southern California, chances
for wetting rainfall and isolated to scattered thunderstorms 
remain 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.

AZZ132-272300-
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-
358 AM MST Sat Sep 27 2025

.TODAY...
* Sky/weather.....................Partly sunny. Slight chance of 
  showers and thunderstorms in the morning becoming chance of 
  showers and thunderstorms in the afternoon. 
* Max Temperature.................83-90. 
*    24 hr trend..................3 degrees cooler. 
* Min Humidity....................33-45 pct. 
*    24 hr trend..................9 pct wetter. 
* Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. 
* Winds...10000 FT MSL............South 10 to 20 mph. 
* Chance of Precip................40 percent. 
* CWR (>= 0.10 IN)................50 percent west portion...10 
  percent east portion. 
* Chance of Thunder...............32 percent. 
* Mixing Height for Phoenix.......9800 ft AGL. 
* Transport Wind for Phoenix......South 9 knots. 
* Dispersion for Phoenix..........Very good. 

.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....................70-87 pct. 
*    24 hr trend..................6 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...............33 percent. 

.SUNDAY...
* Sky/weather.....................Partly sunny. Chance of showers 
  in the morning. slight chance of thunderstorms . slight chance of 
  showers in the afternoon. 
* Max Temperature.................82-90. 
*    24 hr trend..................Little change. 
* Min Humidity....................34-48 pct. 
*    24 hr trend..................Little RH 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 20 mph. 
* Chance of Precip................30 percent. 
* CWR (>= 0.10 IN)................10 percent west portion...0 
  percent east portion. 
* Chance of Thunder...............19 percent. 
* Mixing Height for Phoenix.......9200 ft AGL. 
* Transport Wind for Phoenix......Southwest 5 knots. 
* Dispersion for Phoenix..........Good. 


.EXTENDED...
.MONDAY...Mostly clear. Lows 65-75. Highs 86-94. East winds 5 to
10 mph. 
.TUESDAY...Mostly clear. Lows 66-76. Highs 87-95. South winds
5 to 10 mph. 
.WEDNESDAY...Mostly clear. Lows 66-76. Highs 89-96. South winds
5 to 10 mph. 
.THURSDAY...Clear. Lows 66-76. Highs 92-99. 
.FRIDAY...Clear. Lows 66-76. Highs 91-99. 

$$

AZZ131-CAZ231-272300-
Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ-
Lower Colorado River Valley CA-
358 AM MST Sat Sep 27 2025 /358 AM PDT Sat Sep 27 2025/

.TODAY...
* Sky/weather.....................Partly sunny. Slight chance of 
  showers and thunderstorms in the morning becoming chance of 
  showers and thunderstorms in the afternoon. 
* Max Temperature.................85-91. 
*    24 hr trend..................4 degrees cooler. 
* Min Humidity....................42-51 pct. 
*    24 hr trend..................21 pct wetter. 
* Winds - 20 foot...Slope/Valley..East 5 to 15 mph. 
* Winds...10000 FT MSL............Light and variable in the morning 
  becoming south 5 to 15 mph in the afternoon. 
* Chance of Precip................60 percent. 
* CWR (>= 0.10 IN)................50 percent. 
* Chance of Thunder...............34 percent. 
* Mixing Height for Yuma..........10200 ft AGL. 
* Transport Wind for Yuma.........South 6 knots. 
* Dispersion for Yuma.............Good. 

.TONIGHT...
* Sky/weather.....................Partly cloudy. Chance of 
  thunderstorms in the evening. chance of showers . slight chance 
  of thunderstorms after midnight. 
* Min Temperature.................66-72. 
*    24 hr trend..................3 degrees cooler. 
* Max Humidity....................81-100 pct. 
*    24 hr trend..................14 pct wetter. 
* Winds - 20 foot...Slope/Valley..Northeast 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 10 to 15 mph. 
* Chance of Precip................40 percent. 
* CWR (>= 0.10 IN)................30 percent. 
* Chance of Thunder...............34 percent. 

.SUNDAY...
* Sky/weather.....................Mostly sunny. Slight chance of 
  showers and thunderstorms. 
* Max Temperature.................86-91. 
*    24 hr trend..................Little change. 
* Min Humidity....................38-48 pct. 
*    24 hr trend..................3 pct drier. 
* Winds - 20 foot...Slope/Valley..East 5 to 10 mph in the morning 
  becoming south in the afternoon. 
* Winds...10000 FT MSL............Southwest 10 to 15 mph. 
* Chance of Precip................20 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............12 percent. 
* Mixing Height for Yuma..........7800 ft AGL. 
* Transport Wind for Yuma.........South 4 knots. 
* Dispersion for Yuma.............Fair. 


.EXTENDED...
.MONDAY...Clear. Lows 67-72. Highs 89-94. Southeast winds 5 to
10 mph. 
.TUESDAY...Mostly clear. Lows 64-72. Highs 90-95. South winds
5 to 15 mph. 
.WEDNESDAY...Mostly clear. Lows 64-71. Highs 90-95. Southwest
winds 5 to 10 mph. 
.THURSDAY...Clear. Lows 65-71. Highs 92-97. 
.FRIDAY...Clear. Lows 64-71. Highs 93-98. 

$$

AZZ133-272300-
Southern Gila County/Tonto National Forest Foothills-
Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/
CAZ-
358 AM MST Sat Sep 27 2025

.TODAY...
* Sky/weather.....................Partly sunny. Slight chance of 
  thunderstorms in the morning. chance of showers . chance of 
  thunderstorms in the afternoon. 
* Max Temperature.................71-84. 
*    24 hr trend..................7 degrees warmer. 
* Min Humidity....................38-53 pct. 
*    24 hr trend..................7 pct drier. 
* Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. 
* Winds...10000 FT MSL............South 15 to 25 mph. 
* Chance of Precip................40 percent. 
* CWR (>= 0.10 IN)................40 percent. 
* Chance of Thunder...............30 percent. 

.TONIGHT...
* Sky/weather.....................Partly cloudy. Chance of showers 
  and slight chance of thunderstorms. 
* Min Temperature.................53-67. 
*    24 hr trend..................Little change. 
* Max Humidity....................70-93 pct. 
*    24 hr trend..................12 pct drier. 
* Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. 
* Winds...10000 FT MSL............South 15 to 25 mph. 
* Chance of Precip................50 percent. 
* CWR (>= 0.10 IN)................20 percent. 
* Chance of Thunder...............18 percent. 

.SUNDAY...
* Sky/weather.....................Partly sunny. Chance of showers 
  in the morning. slight chance of thunderstorms . slight chance of 
  showers in the afternoon. 
* Max Temperature.................72-85. 
*    24 hr trend..................Little change. 
* Min Humidity....................33-48 pct. 
*    24 hr trend..................6 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...............17 percent. 


.EXTENDED...
.MONDAY...Mostly clear. Lows 52-68. Highs 74-89. East winds 5 to
15 mph. 
.TUESDAY...Mostly clear. Lows 53-68. Highs 76-90. Southeast winds
5 to 15 mph. 
.WEDNESDAY...Clear. Lows 53-69. Highs 77-92. Northeast winds 5 to
10 mph. 
.THURSDAY...Clear. Lows 55-70. Highs 81-95. 
.FRIDAY...Clear. Lows 55-70. Highs 81-95. 

$$

CAZ232-272300-
Imperial County And Eastern Riverside County-
358 AM PDT Sat Sep 27 2025

.TODAY...
* Sky/weather.....................Partly sunny. Slight chance of 
  thunderstorms in the morning. chance of showers . chance of 
  thunderstorms in the afternoon. 
* Max Temperature.................79-90. 
*    24 hr trend..................4 degrees cooler. 
* Min Humidity....................35-50 pct. 
*    24 hr trend..................15 pct wetter. 
* Winds - 20 foot...Slope/Valley..Northeast 5 to 15 mph. 
* Winds...10000 FT MSL............South 5 to 15 mph. 
* Chance of Precip................50 percent. 
* CWR (>= 0.10 IN)................40 percent. 
* Chance of Thunder...............31 percent. 

.TONIGHT...
* Sky/weather.....................Partly cloudy. Slight chance of 
  thunderstorms in the evening. slight chance of showers . 
* Min Temperature.................65-71. 
*    24 hr trend..................Little change. 
* Max Humidity....................71-87 pct. 
*    24 hr trend..................10 pct wetter. 
* Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the 
  evening becoming north after midnight. 
* Winds...10000 FT MSL............Southwest 10 to 15 mph. 
* Chance of Precip................30 percent. 
* CWR (>= 0.10 IN)................10 percent. 
* Chance of Thunder...............22 percent. 

.SUNDAY...
* Sky/weather.....................Mostly sunny. Slight chance of 
  showers . slight chance of thunderstorms in the afternoon. 
* Max Temperature.................82-91. 
*    24 hr trend..................Little change. 
* Min Humidity....................32-45 pct. 
*    24 hr trend..................4 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 west 5 to 15 mph in the afternoon. 
* Chance of Precip................10 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............7 percent. 


.EXTENDED...
.MONDAY...Mostly clear. Lows 67-74. Highs 85-94. Southwest winds
5 to 10 mph. 
.TUESDAY...Mostly clear. Lows 64-72. Highs 84-94. Southwest winds
5 to 15 mph. 
.WEDNESDAY...Clear. Lows 64-71. Highs 85-93. West winds 5 to
15 mph. 
.THURSDAY...Clear. Lows 66-72. Highs 87-96. 
.FRIDAY...Clear. Lows 67-72. Highs 87-95. 

$$

CAZ230-272300-
Joshua Tree National Park-
358 AM PDT Sat Sep 27 2025

.TODAY...
* Sky/weather.....................Partly sunny. Chance of showers 
  in the morning. chance of thunderstorms . showers likely in the 
  afternoon. 
* Max Temperature.................69-81. 
*    24 hr trend..................5 degrees cooler. 
* Min Humidity....................45-56 pct. 
*    24 hr trend..................18 pct wetter. 
* Winds - 20 foot...Slope/Valley..Northeast 5 to 10 mph in the 
  morning becoming southeast in the afternoon. 
* Winds...10000 FT MSL............East 5 to 15 mph in the morning 
  becoming light and variable in the afternoon. 
* Chance of Precip................60 percent. 
* CWR (>= 0.10 IN)................60 percent. 
* Chance of Thunder...............34 percent. 

.TONIGHT...
* Sky/weather.....................Mostly clear. Slight chance of 
  showers and thunderstorms in the evening. 
* Min Temperature.................54-65. 
*    24 hr trend..................3 degrees cooler. 
* Max Humidity....................75-90 pct. 
*    24 hr trend..................11 pct wetter. 
* 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. 
* Chance of Precip................20 percent in the evening 
  becoming 0 percent after midnight. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............20 percent. 

.SUNDAY...
* Sky/weather.....................Mostly sunny. Slight chance of 
  showers and thunderstorms in the afternoon. 
* Max Temperature.................72-83. 
*    24 hr trend..................3 degrees warmer. 
* Min Humidity....................41-51 pct. 
*    24 hr trend..................5 pct drier. 
* Winds - 20 foot...Slope/Valley..South 5 to 15 mph. 
* Winds...10000 FT MSL............Light and variable. 
* Chance of Precip................0 percent in the morning becoming 
  20 percent in the afternoon. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............9 percent. 


.EXTENDED...
.MONDAY...Mostly clear. Lows 55-68. Highs 74-86. Southwest winds
5 to 15 mph. 
.TUESDAY...Mostly clear. Lows 54-67. Highs 73-87. Southwest winds
5 to 15 mph. 
.WEDNESDAY...Clear. Lows 54-65. Highs 74-87. West winds 5 to
10 mph. 
.THURSDAY...Clear. Lows 56-66. Highs 76-89. 
.FRIDAY...Clear. Lows 57-66. Highs 76-88. 

$$

.8 TO 10 DAY OUTLOOK...Saturday October 4th through Monday 
October 6th: Above normal temperatures and near median 
precipitation.