627 
FNUS55 KPSR 210934
FWFPSR

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

.DISCUSSION...
Moisture will be on the increase today into Monday along with 
increasing rain chances. Rain chances peak later this evening into
Monday morning with wetting rain chances generally between 
10-30%. MinRHs will bottom out between 20-30% today and 25-40% on 
Monday with good to excellent overnight recoveries at between 
50-90%. Winds will generally remain light with limited upslope 
gusts. 


...Thunderstorms imply gusty winds...

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

AZZ132-212145-
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-
234 AM MST Sun Sep 21 2025

.TODAY...
* Sky/weather.....................Partly sunny. Slight chance of 
  showers and thunderstorms in the afternoon. 
* Max Temperature.................93-101. 
*    24 hr trend..................Little change. 
* Min Humidity....................25-31 pct. 
*    24 hr trend..................Little RH change. 
* Winds - 20 foot...Slope/Valley..Northeast 5 to 10 mph in the 
  morning becoming northwest in the afternoon. 
* Winds...10000 FT MSL............Southwest 10 to 20 mph. 
* Chance of Precip................10 percent in the morning 
  becoming 20 percent in the afternoon. 
* CWR (>= 0.10 IN)................0 percent west portion...10 
  percent east portion. 
* Chance of Thunder...............19 percent. 
* Mixing Height for Phoenix.......10200 ft AGL. 
* Transport Wind for Phoenix......West 7 knots. 
* Dispersion for Phoenix..........Good. 

.TONIGHT...
* Sky/weather.....................Partly cloudy. Slight chance of 
  showers in the evening. slight chance of thunderstorms . chance 
  of showers after midnight. 
* Min Temperature.................73-83. 
*    24 hr trend..................Little change. 
* Max Humidity....................51-62 pct. 
*    24 hr trend..................3 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)................0 percent. 
* Chance of Thunder...............21 percent. 

.MONDAY...
* Sky/weather.....................Partly sunny. Chance of showers 
  in the morning. slight chance of thunderstorms . slight chance of 
  showers in the afternoon. 
* Max Temperature.................90-98. 
*    24 hr trend..................3 degrees cooler. 
* Min Humidity....................29-38 pct. 
*    24 hr trend..................5 pct wetter. 
* Winds - 20 foot...Slope/Valley..North 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 15 to 25 mph. 
* Chance of Precip................30 percent. 
* CWR (>= 0.10 IN)................10 percent. 
* Chance of Thunder...............23 percent. 
* Mixing Height for Phoenix.......6100 ft AGL. 
* Transport Wind for Phoenix......West 6 knots. 
* Dispersion for Phoenix..........Fair. 


.EXTENDED...
.TUESDAY...Mostly clear. Lows 73-83. Highs 96-102. North winds
5 to 10 mph. 
.WEDNESDAY...Clear. Lows 74-84. Highs 98-104. Northeast winds
5 to 10 mph. 
.THURSDAY...Mostly clear. Lows 73-83. Highs 96-104. South winds
5 to 15 mph. 
.FRIDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows 69-79. Highs 91-98. 
.SATURDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows 69-79. Highs 88-95. 

$$

AZZ131-CAZ231-212145-
Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ-
Lower Colorado River Valley CA-
234 AM MST Sun Sep 21 2025 /234 AM PDT Sun Sep 21 2025/

.TODAY...
* Sky/weather.....................Partly sunny. Slight chance of 
  showers and thunderstorms . 
* Max Temperature.................93-100. 
*    24 hr trend..................3 degrees cooler. 
* Min Humidity....................26-32 pct. 
*    24 hr trend..................3 pct drier. 
* Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 10 to 20 mph. 
* Chance of Precip................30 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............16 percent. 
* Mixing Height for Yuma..........4300 ft AGL. 
* Transport Wind for Yuma.........Northwest 9 knots. 
* Dispersion for Yuma.............Fair. 

.TONIGHT...
* Sky/weather.....................Partly 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....................56-73 pct. 
*    24 hr trend..................5 pct wetter. 
* 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)................0 percent. 
* Chance of Thunder...............16 percent. 

.MONDAY...
* Sky/weather.....................Partly sunny. Chance of showers 
  in the morning. slight chance of thunderstorms . slight chance of 
  showers in the afternoon. 
* Max Temperature.................91-96. 
*    24 hr trend..................Little change. 
* Min Humidity....................34-40 pct. 
*    24 hr trend..................7 pct wetter. 
* Winds - 20 foot...Slope/Valley..North 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 15 to 25 mph. 
* Chance of Precip................30 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............14 percent. 
* Mixing Height for Yuma..........4600 ft AGL. 
* Transport Wind for Yuma.........Northwest 6 knots. 
* Dispersion for Yuma.............Fair. 


.EXTENDED...
.TUESDAY...Mostly clear. Lows 72-79. Highs 97-102. Northwest
winds 5 to 15 mph. 
.WEDNESDAY...Clear. Lows 73-79. Highs 99-104. Northwest winds
5 to 15 mph. 
.THURSDAY...Clear. Lows 72-79. Highs 98-103. South winds 5 to
15 mph. 
.FRIDAY...Mostly clear. Lows 70-77. Highs 93-98. 
.SATURDAY...Mostly clear. Lows 70-76. Highs 92-97. 

$$

AZZ133-212145-
Southern Gila County/Tonto National Forest Foothills-
Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/
CAZ-
234 AM MST Sun Sep 21 2025

.TODAY...
* Sky/weather.....................Mostly sunny. Slight chance of 
  showers and thunderstorms in the afternoon. 
* Max Temperature.................83-98. 
*    24 hr trend..................Little change. 
* Min Humidity....................22-31 pct. 
*    24 hr trend..................4 pct drier. 
* Winds - 20 foot...Slope/Valley..Northeast 5 to 10 mph in the 
  morning becoming west in the afternoon. 
* Winds...10000 FT MSL............Southwest 10 to 15 mph. 
* Chance of Precip................0 percent in the morning becoming 
  20 percent in the afternoon. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............17 percent. 

.TONIGHT...
* Sky/weather.....................Partly cloudy. Slight chance of 
  showers in the evening. slight chance of thunderstorms . chance 
  of showers after midnight. 
* Min Temperature.................60-75. 
*    24 hr trend..................Little change. 
* Max Humidity....................55-72 pct. 
*    24 hr trend..................3 pct wetter. 
* Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the 
  evening becoming northeast after midnight. 
* Winds...10000 FT MSL............Southwest 10 to 20 mph. 
* Chance of Precip................40 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............23 percent. 

.MONDAY...
* Sky/weather.....................Partly sunny. Slight chance of 
  thunderstorms in the morning. chance of showers . chance of 
  thunderstorms in the afternoon. 
* Max Temperature.................80-95. 
*    24 hr trend..................3 degrees cooler. 
* Min Humidity....................29-42 pct. 
*    24 hr trend..................9 pct wetter. 
* Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning 
  becoming west in the afternoon. 
* Winds...10000 FT MSL............Southwest 15 to 25 mph. 
* Chance of Precip................50 percent. 
* CWR (>= 0.10 IN)................20 percent. 
* Chance of Thunder...............27 percent. 


.EXTENDED...
.TUESDAY...Mostly clear. Lows 58-75. Highs 84-99. North winds
5 to 15 mph. 
.WEDNESDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows 58-78. Highs 85-100. East winds 5 to 15 mph. 
.THURSDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows 58-78. Highs 83-99. Southeast winds 5 to
15 mph. 
.FRIDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows 55-73. Highs 78-93. 
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows 54-70. Highs 75-89. 

$$

CAZ232-212145-
Imperial County And Eastern Riverside County-
234 AM PDT Sun Sep 21 2025

.TODAY...
* Sky/weather.....................Partly sunny. Slight chance of 
  showers. 
* Max Temperature.................88-96. 
*    24 hr trend..................4 degrees cooler. 
* Min Humidity....................21-30 pct. 
*    24 hr trend..................Little RH change. 
* Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 10 to 20 mph. 
* Chance of Precip................30 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............9 percent. 

.TONIGHT...
* Sky/weather.....................Partly cloudy. Slight chance of 
  showers and thunderstorms . 
* Min Temperature.................72-79. 
*    24 hr trend..................Little change. 
* Max Humidity....................50-69 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................30 percent. 
* CWR (>= 0.10 IN)................20 percent. 
* Chance of Thunder...............9 percent. 

.MONDAY...
* Sky/weather.....................Partly sunny. Slight chance of 
  showers in the morning. 
* Max Temperature.................87-96. 
*    24 hr trend..................Little change. 
* Min Humidity....................29-39 pct. 
*    24 hr trend..................8 pct wetter. 
* Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the 
  morning becoming northeast in the afternoon. 
* Winds...10000 FT MSL............South 10 to 15 mph. 
* Chance of Precip................20 percent in the morning 
  becoming 0 percent in the afternoon. 
* CWR (>= 0.10 IN)................10 percent. 
* Chance of Thunder...............7 percent. 


.EXTENDED...
.TUESDAY...Mostly clear. Lows 73-80. Highs 92-101. Northwest
winds 5 to 10 mph. 
.WEDNESDAY...Clear. Lows 74-80. Highs 93-102. West winds 5 to
10 mph. 
.THURSDAY...Clear. Lows 71-80. Highs 92-101. West winds 5 to
15 mph. 
.FRIDAY...Mostly clear. Lows 70-76. Highs 88-98. 
.SATURDAY...Mostly clear. Lows 70-76. Highs 88-97. 

$$

CAZ230-212145-
Joshua Tree National Park-
234 AM PDT Sun Sep 21 2025

.TODAY...
* Sky/weather.....................Partly sunny. Slight chance of 
  showers in the afternoon. 
* Max Temperature.................77-89. 
*    24 hr trend..................4 degrees cooler. 
* Min Humidity....................26-31 pct. 
*    24 hr trend..................4 pct wetter. 
* Winds - 20 foot...Slope/Valley..West 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 15 to 25 mph. 
* Chance of Precip................10 percent in the morning 
  becoming 20 percent in the afternoon. 
* CWR (>= 0.10 IN)................10 percent. 
* Chance of Thunder...............4 percent. 

.TONIGHT...
* Sky/weather.....................Partly cloudy. Slight chance of 
  showers. 
* Min Temperature.................61-72. 
*    24 hr trend..................Little change. 
* Max Humidity....................50-61 pct. 
*    24 hr trend..................11 pct wetter. 
* Winds - 20 foot...Slope/Valley..West 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...............3 percent. 

.MONDAY...
* Sky/weather.....................Mostly sunny. Slight chance of 
  showers in the morning. 
* Max Temperature.................79-90. 
*    24 hr trend..................Little change. 
* Min Humidity....................30-38 pct. 
*    24 hr trend..................5 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................10 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............7 percent. 


.EXTENDED...
.TUESDAY...Mostly clear. Lows 64-74. Highs 82-95. Northwest winds
5 to 15 mph. 
.WEDNESDAY...Clear. Lows 63-75. Highs 82-95. West winds 5 to
15 mph. 
.THURSDAY...Clear. Lows 60-75. Highs 81-95. West winds 5 to
15 mph. 
.FRIDAY...Mostly clear. Lows 60-71. Highs 78-90. 
.SATURDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows 60-71. Highs 78-90. 

$$

.8 TO 10 DAY OUTLOOK...Sunday September 28th through Tuesday 
September 30th: Near normal temperatures and above median 
precipitation.