952
FNUS55 KPSR 292020
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
120 PM MST SUN MAR 29 2026
DISCUSSION
NEAR RECORD BREAKING TEMPERATURES WILL COOL SLIGHTLY BY TUESDAY AS
MUCH OF THE REGION REMAINS DRY. AN ISOLATED AFTERNOON SHOWER
AND/OR THUNDERSTORM IS POSSIBLE IN CENTRAL AND EASTERN DISTRICTS,
HOWEVER WETTING RAIN IS NOT EXPECTED WITH GUSTY WINDS AND BLOWING
DUST MORE COMMON. ASIDE FROM OUTFLOW WINDS, TYPICAL SPRING
AFTERNOON UPSLOPE GUSTS 20-25 MPH WILL AFFECT THE AREA. MINIMUM
AFTERNOON HUMIDITY LEVELS WILL GENERALLY FALL INTO A 10-20% RANGE
WITH SOMEWHAT HIGHER VALUES OVER EASTERN DISTRICTS. THIS WILL
FOLLOW FAIR TO GOOD OVERNIGHT RECOVERY OF 30-70%.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-300830-
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-
120 PM MST SUN MAR 29 2026
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................64-74.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................51-73 PCT.
* 24 HR TREND..................28 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............5 PERCENT.
MONDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................90-96.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................16-24 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............5 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......9600 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 15 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
MONDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................62-72.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................39-70 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............2 PERCENT.
TUESDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................86-94.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................12-18 PCT.
* 24 HR TREND..................6 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHWEST 5 TO 15 MPH 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.
* MIXING HEIGHT FOR PHOENIX.......9400 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 20 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
EXTENDED
WEDNESDAY
PARTLY CLOUDY. LOWS 55-70. HIGHS 80-86. WEST WINDS
5 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 53-63. HIGHS 82-89. SOUTHWEST
WINDS 10 TO 20 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 79-86. WEST WINDS 10 TO
20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 81-87.
SUNDAY
CLEAR. LOWS 52-62. HIGHS 85-92.
AZZ131-CAZ231-300830-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
120 PM MST SUN MAR 29 2026 /120 PM PDT SUN MAR 29 2026/
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................63-68.
* 24 HR TREND..................3 DEGREES COOLER.
* MAX HUMIDITY....................65-87 PCT.
* 24 HR TREND..................35 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............2 PERCENT.
MONDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................94-99.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................12-25 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* 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.
* MIXING HEIGHT FOR YUMA..........4500 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 9 KNOTS.
* DISPERSION FOR YUMA.............FAIR.
MONDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................63-68.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................42-75 PCT.
* 24 HR TREND..................22 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TUESDAY
* SKY/WEATHER.....................MOSTLY CLOUDY.
* MAX TEMPERATURE.................89-94.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................12-17 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 30 TO 40 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........9100 FT AGL.
* TRANSPORT WIND FOR YUMA.........WEST 11 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
EXTENDED
WEDNESDAY
PARTLY CLOUDY. LOWS 55-68. HIGHS 84-89. WEST WINDS
10 TO 20 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 54-59. HIGHS 84-89. SOUTHWEST
WINDS 15 TO 25 MPH.
FRIDAY
BREEZY. MOSTLY CLEAR. LOWS 50-59. HIGHS 80-85.
NORTHWEST WINDS 20 TO 30 MPH. MINIMUM RELATIVE HUMIDITY MAY BE
LOWER THAN 15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 83-88.
SUNDAY
CLEAR. LOWS 52-61. HIGHS 88-93.
AZZ133-300830-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
120 PM MST SUN MAR 29 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLOUDY.
* MIN TEMPERATURE.................53-67.
* 24 HR TREND..................4 DEGREES WARMER.
* MAX HUMIDITY....................45-60 PCT.
* 24 HR TREND..................13 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE EVENING
BECOMING NORTH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............WEST 10 TO 20 MPH.
* CHANCE OF PRECIP................10 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............5 PERCENT.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................76-90.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................21-29 PCT.
* 24 HR TREND..................12 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 15 TO 25 MPH.
* CHANCE OF PRECIP................10 PERCENT IN THE MORNING
BECOMING 20 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............20 PERCENT.
MONDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS .
* MIN TEMPERATURE.................51-65.
* 24 HR TREND..................3 DEGREES COOLER.
* MAX HUMIDITY....................60-81 PCT.
* 24 HR TREND..................17 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 10 MPH IN THE
EVENING BECOMING SOUTH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH.
* CHANCE OF PRECIP................20 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............20 PERCENT.
TUESDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................73-88.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................16-26 PCT.
* 24 HR TREND..................4 PCT DRIER.
* 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............SOUTHWEST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT IN THE MORNING BECOMING
10 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............10 PERCENT.
EXTENDED
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS 42-65.
HIGHS 65-80. SOUTHWEST WINDS 10 TO 20 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 42-57. HIGHS 69-84. SOUTH WINDS
10 TO 20 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 39-57. HIGHS 68-82. SOUTHWEST WINDS
15 TO 25 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 39-55. HIGHS 67-82.
SUNDAY
CLEAR. LOWS 39-58. HIGHS 70-86.
CAZ232-300830-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
120 PM PDT SUN MAR 29 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................63-69.
* 24 HR TREND..................6 DEGREES COOLER.
* MAX HUMIDITY....................37-81 PCT.
* 24 HR TREND..................30 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
MONDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................89-98.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................9-16 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHWEST 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.
MONDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................64-70.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................23-56 PCT.
* 24 HR TREND..................24 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TUESDAY
* SKY/WEATHER.....................MOSTLY CLOUDY.
* MAX TEMPERATURE.................83-93.
* 24 HR TREND..................6 DEGREES COOLER.
* MIN HUMIDITY....................11-17 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 30 TO 40 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
WEDNESDAY
PARTLY CLOUDY. LOWS 56-69. HIGHS 79-88. WEST WINDS
15 TO 25 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 55-62. HIGHS 79-88. WEST WINDS
15 TO 25 MPH.
FRIDAY
BREEZY. MOSTLY CLEAR. LOWS 54-61. HIGHS 75-85.
NORTHWEST WINDS 20 TO 30 MPH. MINIMUM RELATIVE HUMIDITY MAY BE
LOWER THAN 15 PERCENT.
SATURDAY
CLEAR. LOWS 54-63. HIGHS 78-87.
SUNDAY
CLEAR. LOWS 56-65. HIGHS 83-92.
CAZ230-300830-
JOSHUA TREE NATIONAL PARK-
120 PM PDT SUN MAR 29 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................55-65.
* 24 HR TREND..................6 DEGREES COOLER.
* MAX HUMIDITY....................21-35 PCT.
* 24 HR TREND..................10 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................77-93.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................9-13 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 10 MPH IN THE
MORNING BECOMING 10 TO 20 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............WEST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY IN THE EVENING
BECOMING MOSTLY CLOUDY AFTER MIDNIGHT.
* MIN TEMPERATURE.................55-67.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................21-32 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TUESDAY
* SKY/WEATHER.....................MOSTLY CLOUDY.
* MAX TEMPERATURE.................71-86.
* 24 HR TREND..................6 DEGREES COOLER.
* MIN HUMIDITY....................13-20 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
WEDNESDAY
MOSTLY CLEAR. LOWS 44-63. HIGHS 68-82. WEST WINDS
15 TO 25 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 44-56. HIGHS 68-83. WEST WINDS
15 TO 25 MPH.
FRIDAY
BREEZY. MOSTLY CLEAR. LOWS 44-56. HIGHS 63-77.
NORTHWEST WINDS 20 TO 30 MPH. MINIMUM RELATIVE HUMIDITY MAY BE
LOWER THAN 15 PERCENT.
SATURDAY
CLEAR. LOWS 44-57. HIGHS 67-80.
SUNDAY
CLEAR. LOWS 47-60. HIGHS 73-85.
8 TO 10 DAY OUTLOOK
MONDAY APRIL 6TH THROUGH WEDNESDAY APRIL
8TH: ABOVE NORMAL TEMPERATURES AND NEAR MEDIAN PRECIPITATION.
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