938
FNUS55 KPSR 230818
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
118 AM MST THU JUL 23 2026
DISCUSSION
WITH TEMPERATURES WARMING ABOVE THE SEASONAL NORMAL, DRIER
WEATHER WILL PREVAIL THROUGH FRIDAY WITH ONLY SLIGHT CHANCES FOR
ISOLATED, SHORT LIVED STORMS OVER MOUNTAINS OF EASTERN DISTRICTS.
DESPITE THE DRIER WEATHER, MINIMUM HUMIDITY LEVELS WILL ONLY FALL
INTO A 10-25% RANGE FOLLOWING FAIR TO GOOD OVERNIGHT RECOVERY OF
30-60%. WINDS WILL BE SEASONALLY LIGHT WITH LIMITED AFTERNOON
GUSTS, AND NO EXPECTED THUNDERSTORM OUTFLOWS.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-232030-
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-
118 AM MST THU JUL 23 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................106-114.
* 24 HR TREND..................5 DEGREES WARMER.
* MIN HUMIDITY....................18-22 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHEAST IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTHEAST 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...............3 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......11700 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTH 6 KNOTS.
* DISPERSION FOR PHOENIX..........VERY GOOD.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................86-96.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................36-45 PCT.
* 24 HR TREND..................4 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
FRIDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................109-115.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................16-20 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 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...............1 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......13600 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 5 KNOTS.
* DISPERSION FOR PHOENIX..........GOOD.
EXTENDED
SATURDAY
MOSTLY CLEAR. LOWS 86-96. HIGHS 111-117. SOUTHWEST
WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 83-93. HIGHS 104-111. SOUTHWEST WINDS 5 TO
15 MPH.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 81-91. HIGHS 102-108. SOUTHWEST WINDS 5 TO
15 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 81-91. HIGHS 101-108.
WEDNESDAY
MOSTLY CLEAR. LOWS 82-92. HIGHS 103-109.
AZZ131-CAZ231-232030-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
118 AM MST THU JUL 23 2026 /118 AM PDT THU JUL 23 2026/
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................110-115.
* 24 HR TREND..................4 DEGREES WARMER.
* MIN HUMIDITY....................16-20 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING SOUTH 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................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........11600 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 5 KNOTS.
* DISPERSION FOR YUMA.............GOOD.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................89-94.
* 24 HR TREND..................4 DEGREES WARMER.
* MAX HUMIDITY....................33-42 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 5 TO 15 MPH IN THE
EVENING BECOMING 15 TO 25 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
FRIDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................112-117.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................15-19 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 20 TO 30 MPH IN THE MORNING
BECOMING 10 TO 20 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........8900 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 12 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
EXTENDED
SATURDAY
MOSTLY CLEAR. LOWS 87-92. HIGHS 113-118. SOUTH WINDS
10 TO 20 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 85-92. HIGHS 107-113. SOUTH WINDS
15 TO 25 MPH.
MONDAY
PARTLY CLOUDY. LOWS 83-88. HIGHS 106-111. SOUTH WINDS
10 TO 20 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 83-88. HIGHS 105-110.
WEDNESDAY
MOSTLY CLEAR. LOWS 84-89. HIGHS 106-111.
AZZ133-232030-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
118 AM MST THU JUL 23 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................90-106.
* 24 HR TREND..................6 DEGREES WARMER.
* MIN HUMIDITY....................22-32 PCT.
* 24 HR TREND..................8 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 5 TO 15 MPH IN THE MORNING
BECOMING LIGHT AND VARIABLE IN THE AFTERNOON.
* CHANCE OF PRECIP................5 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............5 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................68-85.
* 24 HR TREND..................4 DEGREES WARMER.
* MAX HUMIDITY....................45-63 PCT.
* 24 HR TREND..................13 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 10 MPH IN THE
EVENING BECOMING NORTHEAST AFTER MIDNIGHT.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............4 PERCENT.
FRIDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................93-109.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................18-26 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING WEST IN THE AFTERNOON.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE.
* CHANCE OF PRECIP................5 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............4 PERCENT.
EXTENDED
SATURDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 68-87. HIGHS 95-111. NORTHEAST WINDS 5 TO
10 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS 67-86. HIGHS 91-106. WEST WINDS 5 TO
15 MPH.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 65-84. HIGHS 88-102. WEST WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 65-83. HIGHS 88-102.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 65-83. HIGHS 90-104.
CAZ232-232030-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
118 AM PDT THU JUL 23 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................106-116.
* 24 HR TREND..................5 DEGREES WARMER.
* MIN HUMIDITY....................15-21 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 10 MPH IN THE MORNING
BECOMING SOUTH IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTHEAST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................89-94.
* 24 HR TREND..................4 DEGREES WARMER.
* MAX HUMIDITY....................28-44 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 5 TO 15 MPH IN THE
EVENING BECOMING 15 TO 25 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
FRIDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................107-117.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................15-20 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
SATURDAY
MOSTLY CLEAR. LOWS 87-93. HIGHS 108-119. SOUTHWEST
WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 84-93. HIGHS 104-115. SOUTH WINDS
10 TO 20 MPH.
MONDAY
PARTLY CLOUDY. LOWS 84-90. HIGHS 102-113. SOUTH WINDS
10 TO 20 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 84-89. HIGHS 102-112.
WEDNESDAY
MOSTLY CLEAR. LOWS 84-89. HIGHS 102-112.
CAZ230-232030-
JOSHUA TREE NATIONAL PARK-
118 AM PDT THU JUL 23 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................96-109.
* 24 HR TREND..................4 DEGREES WARMER.
* MIN HUMIDITY....................17-23 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 10 TO 20 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.................79-90.
* 24 HR TREND..................4 DEGREES WARMER.
* MAX HUMIDITY....................30-38 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
FRIDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................97-111.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................15-21 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 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.
EXTENDED
SATURDAY
MOSTLY CLEAR. LOWS 78-89. HIGHS 99-112. WEST WINDS
5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 76-89. HIGHS 96-109. SOUTHWEST WINDS
10 TO 20 MPH.
MONDAY
PARTLY CLOUDY. LOWS 75-87. HIGHS 94-107. SOUTHWEST
WINDS 5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 74-86. HIGHS 93-106.
WEDNESDAY
MOSTLY CLEAR. LOWS 74-86. HIGHS 93-106.
8 TO 10 DAY OUTLOOK
THURSDAY JULY 30TH THROUGH SATURDAY AUGUST 1ST:
ABOVE NORMAL TEMPERATURES AND NEAR MEDIAN PRECIPITATION.
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