637
FNUS55 KPSR 230804
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
104 AM MST FRI OCT 23 2026
DISCUSSION
DRIER AIR HAS SPREAD THROUGH THE AREA SINCE YESTERDAY MORNING
RESULTING IN CLEARING SKIES AND AN END TO THE RAIN CHANCES.
THE WEATHER SYSTEM WILL STILL LINGER ACROSS THE REGION OVER THE
NEXT COUPLE OF DAYS BRINGING LIGHT SHOWER CHANCES TO MOUNTAIN
AREAS SATURDAY, BUT NO WETTING RAINFALL IS EXPECTED. MINIMUM
HUMIDITY LEVELS WILL FALL INTO A 25-50% RANGE FOLLOWING GOOD TO
EXCELLENT OVERNIGHT RECOVERY. LIGHT WINDS ARE FORECAST FOR TODAY
AND FOR MUCH OF THE AREA ON SATURDAY WITH ONLY SOME BREEZINESS
POSSIBLE EARLY SATURDAY ACROSS THE WESTERN DISTRICTS.
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-232015-
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-
104 AM MST FRI OCT 23 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................73-79.
* 24 HR TREND..................5 DEGREES COOLER.
* MIN HUMIDITY....................26-44 PCT.
* 24 HR TREND..................8 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......7300 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 4 KNOTS.
* DISPERSION FOR PHOENIX..........MARGINAL.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................54-64.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................55-80 PCT.
* 24 HR TREND..................6 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SATURDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................73-80.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................25-41 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 10 MPH IN THE MORNING
BECOMING WEST IN THE AFTERNOON.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......9700 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 5 KNOTS.
* DISPERSION FOR PHOENIX..........GOOD.
EXTENDED
SUNDAY
MOSTLY CLEAR. LOWS 54-64. HIGHS 75-82. NORTHEAST WINDS
5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 56-66. HIGHS 78-84. NORTHEAST WINDS
5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 57-67. HIGHS 79-85. EAST WINDS 5 TO
10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 58-68. HIGHS 78-84.
THURSDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS
58-68. HIGHS 75-81.
AZZ131-CAZ231-232015-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
104 AM MST FRI OCT 23 2026 /104 AM PDT FRI OCT 23 2026/
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................74-79.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................25-33 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................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........6700 FT AGL.
* TRANSPORT WIND FOR YUMA.........WEST 8 KNOTS.
* DISPERSION FOR YUMA.............GOOD.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................54-60.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................60-83 PCT.
* 24 HR TREND..................8 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SATURDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................77-82.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................23-31 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTH 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........9400 FT AGL.
* TRANSPORT WIND FOR YUMA.........NORTHWEST 6 KNOTS.
* DISPERSION FOR YUMA.............GOOD.
EXTENDED
SUNDAY
MOSTLY CLEAR. LOWS 55-63. HIGHS 79-84. NORTH WINDS 5 TO
10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 57-64. HIGHS 81-86. NORTH WINDS 5 TO
10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 57-64. HIGHS 81-86. SOUTHWEST WINDS
5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 57-64. HIGHS 80-85.
THURSDAY
PARTLY CLOUDY. LOWS 57-64. HIGHS 77-82.
AZZ133-232015-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
104 AM MST FRI OCT 23 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................63-75.
* 24 HR TREND..................5 DEGREES COOLER.
* MIN HUMIDITY....................44-60 PCT.
* 24 HR TREND..................16 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHWEST IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTH 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................46-58.
* 24 HR TREND..................3 DEGREES COOLER.
* MAX HUMIDITY....................70-93 PCT.
* 24 HR TREND..................8 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..LIGHT AND VARIABLE IN THE EVENING
BECOMING MOSTLY DOWNSLOPE/DOWNVALLEY AFTER MIDNIGHT.
* WINDS...10000 FT MSL............SOUTH 20 TO 30 MPH.
* CHANCE OF PRECIP................10 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............4 PERCENT.
SATURDAY
* SKY/WEATHER.....................MOSTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................61-73.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................41-57 PCT.
* 24 HR TREND..................4 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHWEST IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTH 10 TO 20 MPH.
* CHANCE OF PRECIP................10 PERCENT IN THE MORNING
BECOMING 0 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............7 PERCENT.
EXTENDED
SUNDAY
MOSTLY CLEAR. LOWS 43-57. HIGHS 61-75. NORTHEAST WINDS
5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 43-58. HIGHS 65-78. NORTHEAST WINDS
5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 45-60. HIGHS 66-79. EAST WINDS 5 TO
15 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 47-60. HIGHS 66-78.
THURSDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 48-60. HIGHS 63-76.
CAZ232-232015-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
104 AM PDT FRI OCT 23 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................70-79.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................26-39 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................56-62.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................55-80 PCT.
* 24 HR TREND..................8 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE EVENING
BECOMING NORTHEAST 5 TO 15 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............2 PERCENT.
SATURDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................74-84.
* 24 HR TREND..................4 DEGREES WARMER.
* MIN HUMIDITY....................20-30 PCT.
* 24 HR TREND..................6 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHEAST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
SUNDAY
MOSTLY CLEAR. LOWS 57-66. HIGHS 76-85. NORTH WINDS 5 TO
10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 59-66. HIGHS 77-87. NORTH WINDS 5 TO
10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 58-66. HIGHS 78-86. WEST WINDS 5 TO
10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 58-64. HIGHS 75-84.
THURSDAY
PARTLY CLOUDY. LOWS 57-64. HIGHS 73-81.
CAZ230-232015-
JOSHUA TREE NATIONAL PARK-
104 AM PDT FRI OCT 23 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................60-72.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................33-46 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 15 MPH.
* 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...............2 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................47-59.
* 24 HR TREND..................4 DEGREES WARMER.
* MAX HUMIDITY....................55-71 PCT.
* 24 HR TREND..................14 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 10 MPH IN THE EVENING
BECOMING NORTHWEST 10 TO 20 MPH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............NORTHEAST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............2 PERCENT.
SATURDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................64-76.
* 24 HR TREND..................4 DEGREES WARMER.
* MIN HUMIDITY....................27-34 PCT.
* 24 HR TREND..................9 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 15 TO 25 MPH IN THE
MORNING BECOMING NORTH 5 TO 15 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............NORTHEAST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
SUNDAY
MOSTLY CLEAR. LOWS 49-60. HIGHS 66-78. NORTH WINDS 5 TO
15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 68-80. WEST WINDS 5 TO
10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 68-80. SOUTHWEST WINDS
5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 49-59. HIGHS 66-78.
THURSDAY
PARTLY CLOUDY. LOWS 47-59. HIGHS 63-75.
8 TO 10 DAY OUTLOOK
FRIDAY OCTOBER 30TH THROUGH SUNDAY NOVEMBER
1ST: NEAR NORMAL TEMPERATURES AND ABOVE MEDIAN PRECIPITATION.
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