451
FNUS55 KPSR 261003
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
303 AM MST SUN APR 26 2026
DISCUSSION
A WEATHER SYSTEM WILL MOVE THROUGH THE REGION TODAY LEADING TO
BELOW NORMAL TEMPERATURES AND ANOTHER DAY OF INCREASED WINDS.
WIND GUSTS OF 20-30 MPH ARE EXPECTED ACROSS MOST LOCATIONS, WITH
GUSTS AS HIGH AS 30-50 MPH ACROSS PORTIONS OF SE CA. WIND GUSTS
ACROSS SE CA WILL GRADUALLY DECREASE THROUGH THE DAY, BUT GUSTS
UPWARDS OF 25-35 MPH ARE STILL EXPECTED DURING THE AFTERNOON AND
EARLY EVENING HOURS. THIS SYSTEM WILL ALLOW FOR MINRHS TO BE IN
THE 20-30% RANGE BEFORE DECREASING BACK INTO A 10-20% RANGE
TOMORROW. OVERNIGHT RECOVERIES WILL BE IN THE 40-70% RANGE
TONIGHT, BUT LOWER TO 30-60% TOMORROW. WINDS WILL RETURN TO MORE
SEASONABLE BREEZY AFTERNOON CONDITIONS TOMORROW AND ARE EXPECTED
TO FALL SHORT OF CREATING WIDESPREAD ELEVATED FIRE WEATHER
CONCERNS.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-262215-
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-
303 AM MST SUN APR 26 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................72-79.
* 24 HR TREND..................7 DEGREES COOLER.
* MIN HUMIDITY....................22-27 PCT.
* 24 HR TREND..................8 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 30 TO 40 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......10500 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 17 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................47-57.
* 24 HR TREND..................6 DEGREES COOLER.
* MAX HUMIDITY....................50-70 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................75-82.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................15-19 PCT.
* 24 HR TREND..................8 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......9200 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 13 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
EXTENDED
TUESDAY
MOSTLY CLEAR. LOWS 49-65. HIGHS 82-88. WEST WINDS 5 TO
10 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
WEDNESDAY
PARTLY CLOUDY. LOWS 57-67. HIGHS 84-89. SOUTH WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
THURSDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS
57-67. HIGHS 79-86. SOUTHWEST WINDS 5 TO 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 57-68. HIGHS 87-94.
SATURDAY
MOSTLY CLEAR. LOWS 61-71. HIGHS 91-98.
AZZ131-CAZ231-262215-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
303 AM MST SUN APR 26 2026 /303 AM PDT SUN APR 26 2026/
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY. PATCHY BLOWING DUST
IN THE AFTERNOON.
* MAX TEMPERATURE.................75-80.
* 24 HR TREND..................6 DEGREES COOLER.
* MIN HUMIDITY....................22-28 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 30 TO 40 MPH IN THE MORNING
BECOMING 20 TO 30 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........9300 FT AGL.
* TRANSPORT WIND FOR YUMA.........WEST 20 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................49-54.
* 24 HR TREND..................4 DEGREES COOLER.
* MAX HUMIDITY....................61-80 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................76-81.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................16-20 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........8300 FT AGL.
* TRANSPORT WIND FOR YUMA.........WEST 9 KNOTS.
* DISPERSION FOR YUMA.............VERY GOOD.
EXTENDED
TUESDAY
MOSTLY CLEAR. LOWS 49-62. HIGHS 83-88. WEST WINDS 5 TO
10 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
WEDNESDAY
PARTLY CLOUDY. LOWS 55-64. HIGHS 86-91. SOUTHWEST
WINDS 5 TO 15 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 58-64. HIGHS 83-88. WEST WINDS
5 TO 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 58-66. HIGHS 92-97.
SATURDAY
MOSTLY CLEAR. LOWS 61-69. HIGHS 95-100.
AZZ133-262215-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
303 AM MST SUN APR 26 2026
TODAY
* SKY/WEATHER.....................PARTLY SUNNY IN THE MORNING
BECOMING SUNNY IN THE AFTERNOON.
* MAX TEMPERATURE.................61-75.
* 24 HR TREND..................8 DEGREES COOLER.
* MIN HUMIDITY....................20-31 PCT.
* 24 HR TREND..................8 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 30 TO 40 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............3 PERCENT.
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................37-51.
* 24 HR TREND..................7 DEGREES COOLER.
* MAX HUMIDITY....................50-70 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
MONDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................64-79.
* 24 HR TREND..................4 DEGREES WARMER.
* MIN HUMIDITY....................14-20 PCT.
* 24 HR TREND..................9 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
TUESDAY
MOSTLY CLEAR. LOWS 39-60. HIGHS 71-85. WEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS
46-61. HIGHS 71-86. SOUTH WINDS 5 TO 15 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 44-61. HIGHS 65-79. SOUTHWEST WINDS
10 TO 20 MPH.
FRIDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 44-63. HIGHS 70-85.
SATURDAY
MOSTLY CLEAR. LOWS 46-68. HIGHS 74-91.
CAZ232-262215-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
303 AM PDT SUN APR 26 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................68-78.
* 24 HR TREND..................6 DEGREES COOLER.
* MIN HUMIDITY....................21-33 PCT.
* 24 HR TREND..................5 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 35 TO 45 MPH IN THE MORNING
BECOMING 25 TO 35 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................48-57.
* 24 HR TREND..................4 DEGREES COOLER.
* MAX HUMIDITY....................50-68 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................72-81.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................15-26 PCT.
* 24 HR TREND..................6 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
TUESDAY
MOSTLY CLEAR. LOWS 51-65. HIGHS 78-87. WEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
WEDNESDAY
PARTLY CLOUDY. LOWS 59-67. HIGHS 82-89. WEST WINDS
5 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 60-67. HIGHS 80-89. WEST WINDS
5 TO 15 MPH.
FRIDAY
CLEAR. LOWS 60-70. HIGHS 88-97.
SATURDAY
MOSTLY CLEAR. LOWS 63-71. HIGHS 90-99.
CAZ230-262215-
JOSHUA TREE NATIONAL PARK-
303 AM PDT SUN APR 26 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................55-72.
* 24 HR TREND..................7 DEGREES COOLER.
* MIN HUMIDITY....................23-43 PCT.
* 24 HR TREND..................13 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 25 TO 35 MPH IN THE MORNING
BECOMING 15 TO 25 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................10 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................37-48.
* 24 HR TREND..................4 DEGREES COOLER.
* MAX HUMIDITY....................56-76 PCT.
* 24 HR TREND..................9 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................60-75.
* 24 HR TREND..................4 DEGREES WARMER.
* MIN HUMIDITY....................16-32 PCT.
* 24 HR TREND..................9 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 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...............0 PERCENT.
EXTENDED
TUESDAY
MOSTLY CLEAR. LOWS 41-59. HIGHS 68-81. WEST WINDS 5 TO
15 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 49-61. HIGHS 71-84. WEST WINDS
5 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 50-62. HIGHS 71-84. NORTHWEST
WINDS 5 TO 15 MPH.
FRIDAY
CLEAR. LOWS 51-66. HIGHS 78-92.
SATURDAY
MOSTLY CLEAR. LOWS 55-66. HIGHS 79-93.
8 TO 10 DAY OUTLOOK
SUNDAY MAY 3RD THROUGH TUESDAY MAY 5TH:
ABOVE NORMAL TEMPERATURES AND NEAR MEDIAN PRECIPITATION.
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