815
FNUS55 KPSR 102107
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
207 PM MST FRI JUL 10 2026
DISCUSSION
MOUNTAIN THUNDERSTORMS IN EASTERN DISTRICTS WILL BE FAR LESS
LIKELY TODAY WITH MINIMAL TO NO IMPACTS. HOWEVER, ACTIVITY WILL
RETURN SATURDAY WITH STRONG, GUSTY WINDS AND LOCALLY HEAVY
RAINFALL. HUMIDITY LEVELS THIS AFTERNOON WILL FALL TOWARD THE
10-20% RANGE IN WESTERN DISTRICTS, WHILE VALUES CLOSER TO 15-25%
WILL BE MORE COMMON FOR THE EASTERN DISTRICTS. MINRH LEVELS
IMPROVE ON SATURDAY, RANGING BETWEEN 15-25% AREAWIDE. DECENT TO
GOOD OVERNIGHT RECOVERY CAN BE EXPECTED AS MAXRHS RUN BETWEEN
30-60%. OUTSIDE OF AREAS THAT SEE GUSTY OUTFLOWS FROM
THUNDERSTORMS, WINDS WILL FOLLOW DIURNAL TRENDS WITH TYPICAL
AFTERNOON UPSLOPE BREEZINESS AROUND 20-25 MPH.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-110915-
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-
207 PM MST FRI JUL 10 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................77-87.
* 24 HR TREND..................4 DEGREES COOLER.
* MAX HUMIDITY....................41-56 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH IN THE
EVENING BECOMING SOUTHEAST AFTER MIDNIGHT.
* 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.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................102-109.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................20-27 PCT.
* 24 HR TREND..................4 PCT WETTER.
* 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...............3 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......9900 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 12 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
SATURDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY IN THE EVENING
BECOMING MOSTLY CLOUDY AFTER MIDNIGHT.
* MIN TEMPERATURE.................79-89.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................43-54 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............EAST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............7 PERCENT.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................102-108.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................22-28 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...............8 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......10800 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 6 KNOTS.
* DISPERSION FOR PHOENIX..........GOOD.
EXTENDED
MONDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS 78-88. HIGHS 101-107. SOUTH WINDS 5 TO
10 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 80-90. HIGHS 102-109. SOUTH WINDS 5 TO
10 MPH.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 79-89. HIGHS 103-110. SOUTHEAST WINDS 5 TO
15 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 77-87. HIGHS 99-105.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS 76-86. HIGHS 95-102.
AZZ131-CAZ231-110915-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
207 PM MST FRI JUL 10 2026 /207 PM PDT FRI JUL 10 2026/
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................76-81.
* 24 HR TREND..................6 DEGREES COOLER.
* MAX HUMIDITY....................41-60 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 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.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................104-110.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................21-27 PCT.
* 24 HR TREND..................5 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
* MIXING HEIGHT FOR YUMA..........4900 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 15 KNOTS.
* DISPERSION FOR YUMA.............VERY GOOD.
SATURDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................78-83.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................38-55 PCT.
* 24 HR TREND..................4 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 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...............2 PERCENT.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................104-109.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................21-29 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............3 PERCENT.
* MIXING HEIGHT FOR YUMA..........8400 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 10 KNOTS.
* DISPERSION FOR YUMA.............VERY GOOD.
EXTENDED
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 80-85. HIGHS 103-108. SOUTH WINDS 5 TO
15 MPH.
TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 81-87. HIGHS 105-110. SOUTH WINDS 5 TO
15 MPH.
WEDNESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 82-87. HIGHS 106-111. SOUTH WINDS 10 TO
20 MPH.
THURSDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 80-87. HIGHS 101-106.
FRIDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 79-84. HIGHS 98-103.
AZZ133-110915-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
207 PM MST FRI JUL 10 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................65-81.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................40-56 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
SATURDAY
* SKY/WEATHER.....................MOSTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................93-107.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................18-26 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHEAST 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...............5 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................66-82.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................44-65 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH IN THE
EVENING BECOMING EAST 5 TO 10 MPH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............NORTH 5 TO 15 MPH IN THE EVENING
BECOMING LIGHT AND VARIABLE AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............4 PERCENT.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY. CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................91-106.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................20-30 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE MORNING
BECOMING SOUTH IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTHEAST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT IN THE MORNING BECOMING
40 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................20 PERCENT.
* CHANCE OF THUNDER...............42 PERCENT.
EXTENDED
MONDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 63-80. HIGHS 88-104. SOUTHEAST WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 63-80. HIGHS 87-103. EAST WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF THUNDERSTORMS AND
SLIGHT CHANCE OF SHOWERS. LOWS 62-80. HIGHS 86-103. EAST WINDS
5 TO 15 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 61-80. HIGHS 84-100.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS 61-78. HIGHS 82-97.
CAZ232-110915-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
207 PM PDT FRI JUL 10 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................77-82.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................37-71 PCT.
* 24 HR TREND..................8 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 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.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................100-110.
* 24 HR TREND..................5 DEGREES COOLER.
* MIN HUMIDITY....................18-27 PCT.
* 24 HR TREND..................10 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 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...............1 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................80-86.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................34-67 PCT.
* 24 HR TREND..................4 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 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...............1 PERCENT.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................99-109.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................21-31 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............3 PERCENT.
EXTENDED
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 81-87. HIGHS 98-108. SOUTH WINDS 5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 82-89. HIGHS 101-111. SOUTH WINDS
5 TO 10 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 83-89. HIGHS 103-114. SOUTH WINDS
5 TO 15 MPH.
THURSDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 81-89. HIGHS 98-110.
FRIDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 81-87. HIGHS 95-106.
CAZ230-110915-
JOSHUA TREE NATIONAL PARK-
207 PM PDT FRI JUL 10 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................71-80.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................22-39 PCT.
* 24 HR TREND..................14 PCT DRIER.
* 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.
SATURDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................91-105.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................16-23 PCT.
* 24 HR TREND..................10 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................73-83.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................30-39 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 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...............1 PERCENT.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................90-104.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................21-29 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............3 PERCENT.
EXTENDED
MONDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS 73-84. HIGHS 87-102. SOUTH WINDS 5 TO
15 MPH.
TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 74-85. HIGHS 91-105. SOUTHWEST WINDS 5 TO
15 MPH.
WEDNESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS. LOWS
75-85. HIGHS 93-107. SOUTHWEST WINDS 5 TO 15 MPH.
THURSDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 72-85. HIGHS 90-103.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS 71-83. HIGHS 86-99.
8 TO 10 DAY OUTLOOK
SATURDAY JULY 18TH THROUGH MONDAY JULY
20TH
ABOVE NORMAL TEMPERATURES AND ABOVE MEDIAN PRECIPITATION.
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