510
FNUS55 KPSR 270710
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
1210 AM MST WED MAY 27 2026
DISCUSSION
ELEVATED FIRE WEATHER CONDITIONS WILL AFFECT PORTIONS OF THE AREA
DURING THE AFTERNOON HOURS TODAY AND THURSDAY AS WINDS REMAIN
BREEZY TO LOCALLY WINDY AND MINRHS STAY BETWEEN 12-20%. WIND
GUSTS OF GREATER THAN 30 MPH WILL MAINLY AFFECT LOCATIONS WITHIN
SOUTHEAST CALIFORNIA WITH OTHER AREAS BETWEEN 20-30 MPH. NEAR TO
BELOW NORMAL TEMPERATURES ARE EXPECTED THROUGH THE REST OF THE
WORKWEEK.
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-271915-
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-
1210 AM MST WED MAY 27 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................82-93.
* 24 HR TREND..................6 DEGREES COOLER.
* MIN HUMIDITY....................13-25 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......9500 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTH 23 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................56-66.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................40-55 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 30 TO 40 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
THURSDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................82-93.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................14-21 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 30 TO 40 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......11000 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTH 20 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
EXTENDED
FRIDAY
CLEAR. LOWS 56-66. HIGHS 82-89. SOUTHWEST WINDS 5 TO
15 MPH.
SATURDAY
CLEAR. LOWS 58-69. HIGHS 89-94. SOUTHWEST WINDS 5 TO
10 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
SUNDAY
CLEAR. LOWS 63-73. HIGHS 94-100. SOUTHWEST WINDS 5 TO
10 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
MONDAY
CLEAR. LOWS 65-75. HIGHS 98-105.
TUESDAY
MOSTLY CLEAR. LOWS 68-78. HIGHS 101-107.
AZZ131-CAZ231-271915-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
1210 AM MST WED MAY 27 2026 /1210 AM PDT WED MAY 27 2026/
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................82-87.
* 24 HR TREND..................10 DEGREES COOLER.
* MIN HUMIDITY....................17-22 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 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...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........7600 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTHWEST 9 KNOTS.
* DISPERSION FOR YUMA.............GOOD.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................55-60.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................47-62 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 35 TO 45 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
THURSDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................82-87.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................14-20 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 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.
* MIXING HEIGHT FOR YUMA..........7500 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTHWEST 8 KNOTS.
* DISPERSION FOR YUMA.............GOOD.
EXTENDED
FRIDAY
CLEAR. LOWS 56-64. HIGHS 83-88. WEST WINDS 5 TO 15 MPH.
SATURDAY
CLEAR. LOWS 59-68. HIGHS 91-96. SOUTHWEST WINDS 5 TO
10 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
SUNDAY
CLEAR. LOWS 63-70. HIGHS 97-102. SOUTH WINDS 5 TO
10 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
MONDAY
CLEAR. LOWS 65-72. HIGHS 101-106.
TUESDAY
MOSTLY CLEAR. LOWS 67-74. HIGHS 103-108.
AZZ133-271915-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
1210 AM MST WED MAY 27 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................77-92.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................9-15 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHWEST 10 TO 20 MPH 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...............0 PERCENT.
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................49-63.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................36-50 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH IN THE
EVENING BECOMING SOUTHEAST 5 TO 10 MPH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............SOUTH 30 TO 40 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
THURSDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................78-92.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................10-17 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING SOUTHWEST 5 TO 15 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTH 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
FRIDAY
CLEAR. LOWS 47-62. HIGHS 74-88. SOUTHWEST WINDS 10 TO
20 MPH.
SATURDAY
CLEAR. LOWS 47-65. HIGHS 78-91. WEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
SUNDAY
CLEAR. LOWS 49-68. HIGHS 82-97. NORTHWEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
MONDAY
CLEAR. LOWS 52-71. HIGHS 86-101.
TUESDAY
MOSTLY CLEAR. LOWS 55-73. HIGHS 87-103.
CAZ232-271915-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
1210 AM PDT WED MAY 27 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................74-84.
* 24 HR TREND..................10 DEGREES COOLER.
* MIN HUMIDITY....................14-26 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 MPH IN THE
MORNING BECOMING 30 TO 40 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.................53-60.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................39-61 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 35 TO 45 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
THURSDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................75-85.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................12-22 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHWEST IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTHWEST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
FRIDAY
CLEAR. LOWS 55-66. HIGHS 78-87. WEST WINDS 15 TO
25 MPH.
SATURDAY
CLEAR. LOWS 60-72. HIGHS 86-95. WEST WINDS 5 TO
15 MPH.
SUNDAY
CLEAR. LOWS 65-74. HIGHS 91-101. SOUTHWEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
MONDAY
CLEAR. LOWS 67-76. HIGHS 95-105.
TUESDAY
MOSTLY CLEAR. LOWS 69-77. HIGHS 97-107.
CAZ230-271915-
JOSHUA TREE NATIONAL PARK-
1210 AM PDT WED MAY 27 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................63-79.
* 24 HR TREND..................10 DEGREES COOLER.
* MIN HUMIDITY....................16-32 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHWEST 10 TO 20 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTHWEST 15 TO 25 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.................39-55.
* 24 HR TREND..................3 DEGREES COOLER.
* MAX HUMIDITY....................46-65 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH IN THE EVENING
BECOMING 5 TO 10 MPH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............SOUTHWEST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
THURSDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................65-79.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................15-26 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE MORNING
BECOMING SOUTH 5 TO 15 MPH IN THE AFTERNOON.
* 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
FRIDAY
CLEAR. LOWS 41-62. HIGHS 69-82. WEST WINDS 10 TO
20 MPH.
SATURDAY
CLEAR. LOWS 50-68. HIGHS 77-90. WEST WINDS 5 TO
15 MPH.
SUNDAY
CLEAR. LOWS 56-70. HIGHS 81-95. WEST WINDS 5 TO 15 MPH.
MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
MONDAY
CLEAR. LOWS 59-72. HIGHS 85-99.
TUESDAY
MOSTLY CLEAR. LOWS 62-74. HIGHS 87-101.
8 TO 10 DAY OUTLOOK
WEDNESDAY JUNE 3RD THROUGH FRIDAY JUNE
5TH: ABOVE NORMAL TEMPERATURES AND NEAR MEDIAN PRECIPITATION.
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