287
FNUS55 KPSR 052218
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
318 PM MST MON OCT 5 2026
DISCUSSION
DRY CONDITIONS WITH WELL ABOVE NORMAL TEMPERATURES WILL CONTINUE
THROUGH THE MIDDLE OF THE WEEK, WITH AFTERNOON HIGH TEMPERATURES
REACHING UP TO 100-106 DEGREES ACROSS THE LOWER DESERTS. BREEZY
EASTERLY WINDS WILL CONTINUE ACROSS SOUTHERN AZ THROUGH THIS
AFTERNOON AND TUESDAY MORNING, WITH GUSTS UP TO 20-25 MPH. WINDS
WILL RETURN TO THEIR MORE TYPICAL LIGHT DIURNAL TENDENCIES TUESDAY
AFTERNOON, WITH ONLY MINOR AFTERNOON UPSLOPE GUSTINESS. MINRHS
WILL MOSTLY RANGE FROM 15-25% ACROSS THE WESTERN DISTRICTS TO
20-35% ACROSS EASTERN DISTRICTS WITH FAIR TO GOOD OVERNIGHT
RECOVERY (35-60%) AREA-WIDE. NO WETTING RAIN EXPECTED THROUGH THE
WEEK.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-061030-
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-
318 PM MST MON OCT 5 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................72-82.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................40-57 PCT.
* 24 HR TREND..................5 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 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...............1 PERCENT.
TUESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................94-101.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................19-24 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......7200 FT AGL.
* TRANSPORT WIND FOR PHOENIX......NORTH 2 KNOTS.
* DISPERSION FOR PHOENIX..........MARGINAL.
TUESDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................73-83.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................33-52 PCT.
* 24 HR TREND..................6 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 10 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.
WEDNESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................96-103.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................15-21 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING NORTHWEST IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTHEAST 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.......7900 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 3 KNOTS.
* DISPERSION FOR PHOENIX..........MARGINAL.
EXTENDED
THURSDAY
CLEAR. LOWS 73-83. HIGHS 97-104. NORTHEAST WINDS 5 TO
10 MPH.
FRIDAY
CLEAR. LOWS 73-83. HIGHS 94-102. EAST WINDS 15 TO
25 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 69-79. HIGHS 91-97. SOUTHEAST
WINDS 10 TO 20 MPH.
SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 64-74. HIGHS 85-91.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 61-71. HIGHS 80-86.
AZZ131-CAZ231-061030-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
318 PM MST MON OCT 5 2026 /318 PM PDT MON OCT 5 2026/
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................73-80.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................38-51 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 5 TO 15 MPH IN THE EVENING
BECOMING SOUTH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TUESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................99-104.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................16-21 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 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 YUMA..........10700 FT AGL.
* TRANSPORT WIND FOR YUMA.........NORTHWEST 5 KNOTS.
* DISPERSION FOR YUMA.............GOOD.
TUESDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................73-79.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................33-46 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 10 MPH IN THE EVENING
BECOMING MOSTLY DOWNSLOPE/DOWNVALLEY AFTER MIDNIGHT.
* WINDS...10000 FT MSL............SOUTHWEST 5 TO 15 MPH IN THE
EVENING BECOMING NORTH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................100-105.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................14-18 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHEAST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........10900 FT AGL.
* TRANSPORT WIND FOR YUMA.........NORTHWEST 5 KNOTS.
* DISPERSION FOR YUMA.............GOOD.
EXTENDED
THURSDAY
CLEAR. LOWS 74-81. HIGHS 101-106. NORTH WINDS 5 TO
10 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
FRIDAY
CLEAR. LOWS 74-81. HIGHS 100-105. EAST WINDS 5 TO
15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 71-80. HIGHS 95-100. SOUTHEAST
WINDS 10 TO 20 MPH.
SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS. LOWS 65-77.
HIGHS 90-95.
MONDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS. LOWS 61-72.
HIGHS 85-90.
AZZ133-061030-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
318 PM MST MON OCT 5 2026
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................55-73.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................54-83 PCT.
* 24 HR TREND..................7 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 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.
TUESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................78-94.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................21-35 PCT.
* 24 HR TREND..................4 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............EAST 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................57-74.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................49-77 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............EAST 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...............0 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................80-96.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................20-32 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHWEST IN THE AFTERNOON.
* WINDS...10000 FT MSL............NORTHEAST 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
THURSDAY
MOSTLY CLEAR. LOWS 56-74. HIGHS 79-96. EAST WINDS
10 TO 20 MPH.
FRIDAY
CLEAR. LOWS 56-74. HIGHS 76-93. EAST WINDS 15 TO
25 MPH.
SATURDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 56-73. HIGHS 74-91. SOUTHEAST WINDS 10 TO
20 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS 54-70. HIGHS 70-85.
MONDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS 52-67. HIGHS 67-81.
CAZ232-061030-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
318 PM PDT MON OCT 5 2026
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................74-81.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................33-48 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTH 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TUESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................93-104.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................15-23 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 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...............0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................75-82.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................30-45 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTH 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................96-106.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................13-20 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHEAST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
THURSDAY
CLEAR. LOWS 76-82. HIGHS 97-107. NORTHWEST WINDS 5 TO
15 MPH.
FRIDAY
CLEAR. LOWS 75-81. HIGHS 95-105. NORTH WINDS 5 TO
10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 70-81. HIGHS 91-102. SOUTHWEST
WINDS 5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS. LOWS 64-76.
HIGHS 85-96.
MONDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS. LOWS 61-70.
HIGHS 80-91.
CAZ230-061030-
JOSHUA TREE NATIONAL PARK-
318 PM PDT MON OCT 5 2026
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................64-73.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................38-48 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..LIGHT AND VARIABLE IN THE EVENING
BECOMING NORTHWEST 5 TO 10 MPH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE EVENING
BECOMING NORTHEAST 5 TO 15 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TUESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................84-96.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................19-24 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTH 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................66-75.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................34-41 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..LIGHT AND VARIABLE IN THE EVENING
BECOMING NORTHWEST 5 TO 10 MPH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............NORTHEAST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................87-99.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................15-20 PCT.
* 24 HR TREND..................4 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 10 MPH IN THE
MORNING BECOMING NORTHEAST IN THE AFTERNOON.
* WINDS...10000 FT MSL............NORTHEAST 10 TO 20 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
THURSDAY
CLEAR. LOWS 67-76. HIGHS 87-100. NORTHWEST WINDS 5 TO
15 MPH.
FRIDAY
CLEAR. LOWS 64-76. HIGHS 85-98. SOUTHWEST WINDS 5 TO
15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 58-74. HIGHS 81-94. SOUTHWEST
WINDS 10 TO 20 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 52-70. HIGHS 75-89.
MONDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS. LOWS 50-64.
HIGHS 70-83.
8 TO 10 DAY OUTLOOK
TUESDAY OCTOBER 13TH THROUGH THURSDAY
OCTOBER 15TH: NEAR TO ABOVE NORMAL TEMPERATURES AND NEAR TO ABOVE
MEDIAN PRECIPITATION.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page