073
FNUS55 KPSR 300716
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
1216 AM MST THU JUL 30 2026
DISCUSSION
STRONG HIGH PRESSURE WILL GRADUALLY BUILD OVER THE REGION THROUGH
THE REST OF THE WEEK WHILE INCREASINGLY DRY AIR CONFINES ANY RAIN
CHANCES TO OVER FAR EASTERN ARIZONA. EXPECT HUMIDITIES TO
CONTINUE TO LOWER OVER THE NEXT COUPLE OF DAYS WITH MINRHS
SETTLING AT 10-15% BY FRIDAY, WHILE FALLING OVERNIGHT RHS OFFER
ONLY LITTLE TO MODEST RELIEF. RECORD TO NEAR RECORD TEMPERATURES
ARE ALSO FORECAST FOR FRIDAY AND THROUGH THE UPCOMING WEEKEND.
WINDS WILL MOSTLY FOLLOW DIURNAL PATTERNS, BUT WEST SOUTHWESTERLY
WINDS WILL BE DOMINANT MUCH OF THE TIME WITH AFTERNOON GUSTS OF
15-20 MPH AT TIMES.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-301930-
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-
1216 AM MST THU JUL 30 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................107-113.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................12-16 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 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 PHOENIX.......10700 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 7 KNOTS.
* DISPERSION FOR PHOENIX..........VERY GOOD.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................83-93.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................25-32 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE EVENING
BECOMING SOUTH 5 TO 15 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.................109-115.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................11-15 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.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......7400 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 12 KNOTS.
* DISPERSION FOR PHOENIX..........VERY GOOD.
EXTENDED
SATURDAY
MOSTLY CLEAR. LOWS 84-94. HIGHS 110-117. SOUTHWEST
WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 84-94. HIGHS 109-115. SOUTHWEST
WINDS 10 TO 20 MPH.
MONDAY
MOSTLY CLEAR. LOWS 83-93. HIGHS 107-113. SOUTHWEST
WINDS 10 TO 20 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 82-92. HIGHS 105-112.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 80-90. HIGHS 103-109.
AZZ131-CAZ231-301930-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
1216 AM MST THU JUL 30 2026 /1216 AM PDT THU JUL 30 2026/
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................109-114.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................12-16 PCT.
* 24 HR TREND..................4 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 5 TO 15 MPH.
* 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.........SOUTH 8 KNOTS.
* DISPERSION FOR YUMA.............GOOD.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................82-87.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................28-40 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE EVENING
BECOMING SOUTHEAST 5 TO 15 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.................111-116.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................10-16 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........7400 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 7 KNOTS.
* DISPERSION FOR YUMA.............FAIR.
EXTENDED
SATURDAY
MOSTLY CLEAR. LOWS 84-90. HIGHS 114-119. SOUTH WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
CLEAR. LOWS 85-90. HIGHS 112-118. SOUTH WINDS 10 TO
20 MPH.
MONDAY
CLEAR. LOWS 84-89. HIGHS 109-115. SOUTH WINDS 10 TO
20 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 83-88. HIGHS 108-114.
WEDNESDAY
MOSTLY CLEAR. LOWS 82-87. HIGHS 106-111.
AZZ133-301930-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
1216 AM MST THU JUL 30 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................95-109.
* 24 HR TREND..................5 DEGREES WARMER.
* MIN HUMIDITY....................14-21 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............2 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................69-85.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................30-51 PCT.
* 24 HR TREND..................11 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTH 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............2 PERCENT.
FRIDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................98-112.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................12-18 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTH 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.
EXTENDED
SATURDAY
MOSTLY CLEAR. LOWS 71-88. HIGHS 98-113. SOUTHWEST
WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 70-88. HIGHS 95-110. SOUTH WINDS
5 TO 15 MPH.
MONDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 69-87. HIGHS 95-109. SOUTHWEST WINDS 10 TO
20 MPH.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 66-85. HIGHS 93-107.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 65-83. HIGHS 90-104.
CAZ232-301930-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
1216 AM PDT THU JUL 30 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................104-114.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................9-15 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................82-88.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................17-40 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 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.
FRIDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................105-115.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................8-14 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
SATURDAY
MOSTLY CLEAR. LOWS 85-92. HIGHS 108-119. SOUTHWEST
WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
CLEAR. LOWS 84-92. HIGHS 108-118. SOUTH WINDS 10 TO
20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
MONDAY
CLEAR. LOWS 83-91. HIGHS 106-116. SOUTH WINDS 10 TO
20 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 83-90. HIGHS 105-115.
WEDNESDAY
MOSTLY CLEAR. LOWS 82-89. HIGHS 102-112.
CAZ230-301930-
JOSHUA TREE NATIONAL PARK-
1216 AM PDT THU JUL 30 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................95-108.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................9-13 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 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.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................73-85.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................15-21 PCT.
* 24 HR TREND..................4 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE EVENING
BECOMING NORTHWEST AFTER MIDNIGHT.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE EVENING
BECOMING SOUTHEAST 5 TO 15 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.................97-110.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................8-12 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 10 MPH IN THE MORNING
BECOMING SOUTH 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................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
SATURDAY
CLEAR. LOWS 77-90. HIGHS 99-112. WEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
SUNDAY
CLEAR. LOWS 76-90. HIGHS 98-112. SOUTHWEST WINDS 10 TO
20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
MONDAY
CLEAR. LOWS 75-88. HIGHS 97-111. SOUTHWEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
TUESDAY
CLEAR. LOWS 74-87. HIGHS 96-109.
WEDNESDAY
MOSTLY CLEAR. LOWS 73-86. HIGHS 94-107.
8 TO 10 DAY OUTLOOK
THURSDAY AUGUST 6TH THROUGH SATURDAY
AUGUST 8TH: ABOVE NORMAL TEMPERATURES AND ABOVE MEDIAN
PRECIPITATION.
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