379
FNUS55 KPSR 150808
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
108 AM MST WED JUL 15 2026
DISCUSSION
ACTIVE MONSOON WEATHER WITH ELEVATED MOISTURE LEVELS WILL CONTINUE
THROUGH THE REST OF THE WEEK. SHOWER AND THUNDERSTORM CHANCES WILL
INCREASE OVER THE EASTERN DISTRICTS TODAY THROUGH THURSDAY WITH
ONLY ISOLATED CHANCES OVER THE WESTERN DISTRICTS. HEAVY RAINFALL
WILL ALSO BE POSSIBLE ACROSS THE EASTERN DISTRICTS BY THURSDAY
AFTERNOON. MINRHS WILL IMPROVE FROM EAST TO WEST OVER THE NEXT FEW
DAYS, INCREASING FROM 20-35% TODAY TO 30-50% BY FRIDAY. OUTSIDE
OF POTENTIAL THUNDERSTORM OUTFLOWS, WINDS FOR THE EASTERN
DISTRICTS WILL TEND TO BE LIGHT AND SOMEWHAT FAVOR DIURNAL TRENDS.
WINDS WILL PREDOMINATELY FAVOR THE SOUTH WHILE BECOMING BREEZY
STARTING THURSDAY ACROSS THE WESTERN DISTRICTS.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-152015-
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-
108 AM MST WED JUL 15 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY. SLIGHT CHANCE OF
SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.................103-110.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................19-26 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 IN THE MORNING BECOMING
20 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............17 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......7800 FT AGL.
* TRANSPORT WIND FOR PHOENIX......NORTHWEST 11 KNOTS.
* DISPERSION FOR PHOENIX..........VERY GOOD.
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY IN THE EVENING
BECOMING MOSTLY CLOUDY AFTER MIDNIGHT. CHANCE OF SHOWERS IN THE
EVENING. SLIGHT CHANCE OF THUNDERSTORMS . SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.................80-90.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................45-62 PCT.
* 24 HR TREND..................8 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 5 TO 15 MPH IN THE
EVENING BECOMING NORTH AFTER MIDNIGHT.
* CHANCE OF PRECIP................30 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT WEST PORTION...10
PERCENT EAST PORTION.
* CHANCE OF THUNDER...............21 PERCENT.
THURSDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS.
* MAX TEMPERATURE.................97-106.
* 24 HR TREND..................5 DEGREES COOLER.
* MIN HUMIDITY....................26-38 PCT.
* 24 HR TREND..................9 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 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................30 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT WEST PORTION...30
PERCENT EAST PORTION.
* CHANCE OF THUNDER...............19 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......8800 FT AGL.
* TRANSPORT WIND FOR PHOENIX......NORTHWEST 6 KNOTS.
* DISPERSION FOR PHOENIX..........GOOD.
EXTENDED
FRIDAY
SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS
74-84. HIGHS 92-101. SOUTH WINDS 5 TO 15 MPH.
SATURDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 74-84. HIGHS 93-102. SOUTH WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 76-86. HIGHS 96-104. SOUTH WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 77-87. HIGHS 96-104.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 77-87. HIGHS 96-103.
AZZ131-CAZ231-152015-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
108 AM MST WED JUL 15 2026 /108 AM PDT WED JUL 15 2026/
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................108-113.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................17-23 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...............2 PERCENT.
* MIXING HEIGHT FOR YUMA..........11000 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 10 KNOTS.
* DISPERSION FOR YUMA.............VERY GOOD.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................83-88.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................40-55 PCT.
* 24 HR TREND..................6 PCT WETTER.
* 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...............4 PERCENT.
THURSDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................104-109.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................24-30 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............4 PERCENT.
* MIXING HEIGHT FOR YUMA..........8300 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 13 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
EXTENDED
FRIDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 79-86. HIGHS 99-104. SOUTHEAST WINDS 10 TO
20 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 79-85. HIGHS 100-105. SOUTH WINDS
5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 80-85. HIGHS 102-107. SOUTH WINDS
10 TO 20 MPH.
MONDAY
MOSTLY CLEAR. LOWS 80-85. HIGHS 102-107.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 79-84. HIGHS 101-106.
AZZ133-152015-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
108 AM MST WED JUL 15 2026
TODAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE MORNING BECOMING CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................86-101.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................27-43 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING SOUTHWEST IN THE AFTERNOON.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE.
* CHANCE OF PRECIP................50 PERCENT.
* CWR (>= 0.10 IN)................30 PERCENT.
* CHANCE OF THUNDER...............51 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLOUDY IN THE EVENING
BECOMING PARTLY CLOUDY AFTER MIDNIGHT. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.................62-81.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................58-84 PCT.
* 24 HR TREND..................10 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 5 TO 15 MPH IN THE
EVENING BECOMING NORTH 10 TO 20 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................40 PERCENT.
* CWR (>= 0.10 IN)................20 PERCENT.
* CHANCE OF THUNDER...............37 PERCENT.
THURSDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE MORNING BECOMING SHOWERS LIKELY
AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................81-96.
* 24 HR TREND..................5 DEGREES COOLER.
* MIN HUMIDITY....................37-54 PCT.
* 24 HR TREND..................10 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING WEST IN THE AFTERNOON.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE.
* CHANCE OF PRECIP................70 PERCENT.
* CWR (>= 0.10 IN)................70 PERCENT.
* CHANCE OF THUNDER...............56 PERCENT.
EXTENDED
FRIDAY
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS. LOWS 60-77.
HIGHS 79-92. SOUTHWEST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 60-77. HIGHS 79-93. WEST WINDS 5 TO
15 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 60-77. HIGHS 81-95. WEST WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 60-77. HIGHS 81-95.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 60-78. HIGHS 82-96.
CAZ232-152015-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
108 AM PDT WED JUL 15 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................104-114.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................16-23 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 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.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................83-90.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................37-65 PCT.
* 24 HR TREND..................8 PCT WETTER.
* 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...............3 PERCENT.
THURSDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................101-112.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................22-31 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 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.
EXTENDED
FRIDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 80-88. HIGHS 96-107. SOUTHEAST WINDS 15 TO
25 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 80-86. HIGHS 96-106. SOUTH WINDS
5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 81-86. HIGHS 98-108. SOUTH WINDS
5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 80-86. HIGHS 98-108.
TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 80-86. HIGHS 97-107.
CAZ230-152015-
JOSHUA TREE NATIONAL PARK-
108 AM PDT WED JUL 15 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................93-108.
* 24 HR TREND..................4 DEGREES WARMER.
* MIN HUMIDITY....................18-24 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 10 MPH IN THE
MORNING BECOMING SOUTH 5 TO 15 MPH 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...............3 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................75-86.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................34-44 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 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...............3 PERCENT.
THURSDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................91-105.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................22-30 PCT.
* 24 HR TREND..................5 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...............4 PERCENT.
EXTENDED
FRIDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 70-84. HIGHS 86-99. SOUTH WINDS 15 TO 25 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 70-83. HIGHS 86-100. SOUTH WINDS
5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 71-83. HIGHS 88-102. SOUTHWEST WINDS
5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 70-83. HIGHS 88-102.
TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 70-83. HIGHS 87-101.
8 TO 10 DAY OUTLOOK
WEDNESDAY JULY 22ND THROUGH FRIDAY JULY
24TH: NEAR TO BELOW NORMAL TEMPERATURES AND ABOVE MEDIAN
PRECIPITATION.
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