545
FNUS55 KPSR 072207
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
307 PM MST SAT MAR 7 2026
DISCUSSION
BREEZY CONDITIONS WILL LINGER OVER PORTIONS OF THE REGION,
COMBINING WITH AFTERNOON MINRHS IN A 10-15% TO PRODUCE LOCALLY
ELEVATED FIRE WEATHER CONDITIONS THROUGH SUNDAY. HUMIDITY WILL
IMPROVE MONDAY AS A WEATHER SYSTEM APPROACHES AND PASSES JUST
SOUTH OF THE AREA. EXPECT AFTERNOON MINRHS TO INCREASE INTO A
30-40% RANGE MONDAY, FOLLOWING FAIR TO GOOD OVERNIGHT RECOVERIES
IN A 45-70% RANGE SUNDAY NIGHT. CHANCES FOR SHOWERS HAVE
INCREASED INTO A 20-70% RANGE MONDAY/MONDAY NIGHT, WITH VALUES ON
THE HIGHER END OF THAT RANGE FOCUSED EAST AND SOUTHEAST OF THE
PHOENIX AREA. CHANCES FOR A FEW ISOLATED THUNDERSTORMS HAVE ALSO
INCREASED MONDAY AFTERNOON THROUGH THE OVERNIGHT HOURS, NOW IN A
15-30% RANGE.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-081015-
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-
307 PM MST SAT MAR 7 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................46-56.
* 24 HR TREND..................6 DEGREES WARMER.
* MAX HUMIDITY....................21-34 PCT.
* 24 HR TREND..................8 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................82-88.
* 24 HR TREND..................9 DEGREES WARMER.
* MIN HUMIDITY....................13-17 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 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...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......9000 FT AGL.
* TRANSPORT WIND FOR PHOENIX......EAST 7 KNOTS.
* DISPERSION FOR PHOENIX..........GOOD.
SUNDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY. SLIGHT CHANCE OF
SHOWERS IN THE EVENING.
* MIN TEMPERATURE.................52-62.
* 24 HR TREND..................4 DEGREES WARMER.
* MAX HUMIDITY....................55-77 PCT.
* 24 HR TREND..................39 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 15 TO 25 MPH IN THE
EVENING BECOMING 25 TO 35 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS IN THE MORNING BECOMING CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................71-78.
* 24 HR TREND..................11 DEGREES COOLER.
* MIN HUMIDITY....................34-41 PCT.
* 24 HR TREND..................23 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 30 TO 40 MPH.
* CHANCE OF PRECIP................40 PERCENT.
* CWR (>= 0.10 IN)................20 PERCENT WEST PORTION...30
PERCENT EAST PORTION.
* CHANCE OF THUNDER...............11 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......4800 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 9 KNOTS.
* DISPERSION FOR PHOENIX..........GOOD.
EXTENDED
TUESDAY
MOSTLY CLEAR WITH CHANCE OF SHOWERS. LOWS 48-58. HIGHS
71-77. SOUTHWEST WINDS 5 TO 15 MPH.
WEDNESDAY
CLEAR. LOWS 48-60. HIGHS 79-85. NORTH WINDS 5 TO
15 MPH.
THURSDAY
CLEAR. LOWS 53-63. HIGHS 87-93. NORTH WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
FRIDAY
CLEAR. LOWS 55-65. HIGHS 90-96.
SATURDAY
MOSTLY CLEAR. LOWS 55-65. HIGHS 89-95.
AZZ131-CAZ231-081015-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
307 PM MST SAT MAR 7 2026 /207 PM PST SAT MAR 7 2026/
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................46-53.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................24-36 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................83-88.
* 24 HR TREND..................8 DEGREES WARMER.
* MIN HUMIDITY....................12-16 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH IN THE MORNING
BECOMING EAST IN THE AFTERNOON.
* WINDS...10000 FT MSL............EAST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........6900 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 10 KNOTS.
* DISPERSION FOR YUMA.............GOOD.
SUNDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY. SLIGHT CHANCE OF
SHOWERS.
* MIN TEMPERATURE.................53-58.
* 24 HR TREND..................6 DEGREES WARMER.
* MAX HUMIDITY....................62-86 PCT.
* 24 HR TREND..................44 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............EAST 25 TO 35 MPH.
* CHANCE OF PRECIP................10 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS IN THE MORNING BECOMING CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................72-77.
* 24 HR TREND..................11 DEGREES COOLER.
* MIN HUMIDITY....................35-43 PCT.
* 24 HR TREND..................25 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 30 TO 40 MPH.
* CHANCE OF PRECIP................40 PERCENT.
* CWR (>= 0.10 IN)................10 PERCENT.
* CHANCE OF THUNDER...............11 PERCENT.
* MIXING HEIGHT FOR YUMA..........7100 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 6 KNOTS.
* DISPERSION FOR YUMA.............FAIR.
EXTENDED
TUESDAY
CLEAR. LOWS 48-53. HIGHS 75-80. SOUTH WINDS 5 TO
15 MPH.
WEDNESDAY
CLEAR. LOWS 49-60. HIGHS 83-88. NORTH WINDS 5 TO
15 MPH.
THURSDAY
CLEAR. LOWS 53-62. HIGHS 90-95. NORTH WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
FRIDAY
CLEAR. LOWS 54-62. HIGHS 92-97.
SATURDAY
MOSTLY CLEAR. LOWS 55-61. HIGHS 92-97.
AZZ133-081015-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
307 PM MST SAT MAR 7 2026
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................38-54.
* 24 HR TREND..................8 DEGREES WARMER.
* MAX HUMIDITY....................27-45 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 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...............0 PERCENT.
SUNDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................69-83.
* 24 HR TREND..................8 DEGREES WARMER.
* MIN HUMIDITY....................14-20 PCT.
* 24 HR TREND..................5 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 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...............0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................43-56.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................45-61 PCT.
* 24 HR TREND..................18 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................66-78.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................26-37 PCT.
* 24 HR TREND..................14 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHWEST 5 TO 15 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTHEAST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT IN THE MORNING BECOMING
30 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................20 PERCENT.
* CHANCE OF THUNDER...............9 PERCENT.
EXTENDED
TUESDAY
COOLER. PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 37-52. HIGHS 53-68.
SOUTHWEST WINDS 10 TO 20 MPH.
WEDNESDAY
WARMER, CLEAR. LOWS 37-56. HIGHS 67-79. NORTH WINDS
5 TO 15 MPH.
THURSDAY
CLEAR. LOWS 41-59. HIGHS 73-87. NORTHEAST WINDS 5 TO
15 MPH.
FRIDAY
CLEAR. LOWS 44-59. HIGHS 75-89.
SATURDAY
CLEAR. LOWS 44-59. HIGHS 75-89.
CAZ232-081015-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
207 PM PST SAT MAR 7 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................49-58.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................19-39 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............EAST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................79-87.
* 24 HR TREND..................8 DEGREES WARMER.
* MIN HUMIDITY....................12-16 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH IN THE MORNING
BECOMING NORTHEAST IN THE AFTERNOON.
* WINDS...10000 FT MSL............EAST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY. SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.................54-59.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................57-83 PCT.
* 24 HR TREND..................42 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............EAST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT IN THE EVENING BECOMING
20 PERCENT AFTER MIDNIGHT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS .
* MAX TEMPERATURE.................69-77.
* 24 HR TREND..................10 DEGREES COOLER.
* MIN HUMIDITY....................30-42 PCT.
* 24 HR TREND..................22 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............EAST 30 TO 40 MPH IN THE MORNING
BECOMING SOUTHEAST 20 TO 30 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................20 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............6 PERCENT.
EXTENDED
TUESDAY
CLEAR. LOWS 50-58. HIGHS 72-81. SOUTH WINDS 5 TO
15 MPH.
WEDNESDAY
CLEAR. LOWS 51-65. HIGHS 79-87. NORTH WINDS 5 TO
10 MPH.
THURSDAY
CLEAR. LOWS 57-66. HIGHS 86-94. NORTH WINDS 10 TO
20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
FRIDAY
MOSTLY CLEAR. LOWS 58-66. HIGHS 89-97.
SATURDAY
MOSTLY CLEAR. LOWS 58-66. HIGHS 88-96.
CAZ230-081015-
JOSHUA TREE NATIONAL PARK-
207 PM PST SAT MAR 7 2026
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................42-51.
* 24 HR TREND..................4 DEGREES WARMER.
* MAX HUMIDITY....................21-28 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 10 TO 20 MPH.
* WINDS...10000 FT MSL............EAST 35 TO 45 MPH IN THE EVENING
BECOMING 25 TO 35 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................67-81.
* 24 HR TREND..................9 DEGREES WARMER.
* MIN HUMIDITY....................12-16 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 10 TO 20 MPH.
* WINDS...10000 FT MSL............EAST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................44-55.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................48-65 PCT.
* 24 HR TREND..................32 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 10 MPH IN THE EVENING
BECOMING WEST AFTER MIDNIGHT.
* WINDS...10000 FT MSL............EAST 15 TO 25 MPH IN THE EVENING
BECOMING 25 TO 35 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................MOSTLY SUNNY. SLIGHT CHANCE OF
SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.................60-73.
* 24 HR TREND..................7 DEGREES COOLER.
* MIN HUMIDITY....................27-41 PCT.
* 24 HR TREND..................20 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............EAST 25 TO 35 MPH IN THE MORNING
BECOMING 15 TO 25 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT IN THE MORNING BECOMING
10 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
TUESDAY
MOSTLY CLEAR. LOWS 42-55. HIGHS 64-77. SOUTHWEST WINDS
5 TO 15 MPH.
WEDNESDAY
CLEAR. LOWS 46-60. HIGHS 71-83. NORTH WINDS 5 TO
15 MPH.
THURSDAY
CLEAR. LOWS 52-62. HIGHS 76-89. NORTHWEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
FRIDAY
MOSTLY CLEAR. LOWS 54-63. HIGHS 78-91.
SATURDAY
MOSTLY CLEAR. LOWS 54-63. HIGHS 79-92.
8 TO 10 DAY OUTLOOK
SUNDAY MARCH 15TH THROUGH TUESDAY MARCH
17TH: ABOVE NORMAL TEMPERATURES AND BELOW MEDIAN PRECIPITATION.
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