982
FNUS55 KPSR 301907
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
1204 PM MST WED SEP 30 2026
DISCUSSION
ASIDE FROM A FEW AFTERNOON SHOWERS ACROSS THE FAR EASTERN DISTRICTS,
DRY CONDITIONS WILL PREVAIL DURING THE NEXT SEVERAL DAYS. TEMPERATURES
WILL REMAIN WELL BELOW NORMAL ACROSS SOUTH-CENTRAL AZ AND NEAR
NORMAL FOR AREAS ALONG AND WEST OF THE COLORADO RIVER VALLEY TODAY
WITH A GRADUAL WARMING TREND THROUGH THE END OF THE WEEK. AFTERNOON
RELATIVE HUMIDITIES WILL BOTTOM OUT AROUND 15-30% ACROSS THE WESTERN
DISTRICTS AND REMAIN ABOVE 40% ACROSS THE EASTERN DISTRICTS THROUGH
THE END OF THE WEEK ALONG WITH GOOD TO EXCELLENT OVERNIGHT RECOVERIES.
WINDS THROUGH THURSDAY WILL BE LIGHT AND DIURNAL WITH SPEEDS REMAINING
PREDOMINANTLY 10 MPH OR LESS BEFORE INCREASING OUT OF THE EAST BY FRIDAY.
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-010715-
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-
1204 PM MST WED SEP 30 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................63-73.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................66-87 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..LIGHT AND VARIABLE IN THE EVENING
BECOMING EAST 5 TO 10 MPH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............NORTH 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
THURSDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................86-93.
* 24 HR TREND..................6 DEGREES WARMER.
* MIN HUMIDITY....................28-42 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 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 PHOENIX.......4900 FT AGL.
* TRANSPORT WIND FOR PHOENIX......NORTHWEST 5 KNOTS.
* DISPERSION FOR PHOENIX..........FAIR.
THURSDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................67-77.
* 24 HR TREND..................4 DEGREES WARMER.
* MAX HUMIDITY....................55-76 PCT.
* 24 HR TREND..................12 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..LIGHT AND VARIABLE IN THE EVENING
BECOMING NORTHEAST 5 TO 10 MPH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............NORTHEAST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
FRIDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................88-96.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................25-36 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............EAST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......8200 FT AGL.
* TRANSPORT WIND FOR PHOENIX......EAST 13 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
EXTENDED
SATURDAY
CLEAR. LOWS 69-79. HIGHS 88-96. EAST WINDS 15 TO
25 MPH.
SUNDAY
CLEAR. LOWS 69-79. HIGHS 89-98. EAST WINDS 15 TO
25 MPH.
MONDAY
MOSTLY CLEAR. LOWS 70-80. HIGHS 90-98. EAST WINDS 10 TO
20 MPH.
TUESDAY
CLEAR. LOWS 71-81. HIGHS 91-99.
WEDNESDAY
CLEAR. LOWS 71-81. HIGHS 94-101.
AZZ131-CAZ231-010715-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
1204 PM MST WED SEP 30 2026 /1204 PM PDT WED SEP 30 2026/
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................65-71.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................68-81 PCT.
* 24 HR TREND..................5 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTH 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
THURSDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................92-97.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................23-28 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING
BECOMING NORTHEAST IN THE AFTERNOON.
* 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..........6300 FT AGL.
* TRANSPORT WIND FOR YUMA.........WEST 4 KNOTS.
* DISPERSION FOR YUMA.............MARGINAL.
THURSDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................68-75.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................51-66 PCT.
* 24 HR TREND..................16 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 10 MPH.
* WINDS...10000 FT MSL............EAST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
FRIDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................95-100.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................21-26 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 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...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........10400 FT AGL.
* TRANSPORT WIND FOR YUMA.........EAST 15 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
EXTENDED
SATURDAY
CLEAR. LOWS 72-80. HIGHS 95-100. EAST WINDS 10 TO
20 MPH.
SUNDAY
CLEAR. LOWS 72-79. HIGHS 96-101. NORTHEAST WINDS 10 TO
20 MPH.
MONDAY
CLEAR. LOWS 73-79. HIGHS 96-101. NORTHEAST WINDS 10 TO
20 MPH.
TUESDAY
CLEAR. LOWS 72-79. HIGHS 97-102.
WEDNESDAY
CLEAR. LOWS 72-81. HIGHS 99-104.
AZZ133-010715-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
1204 PM MST WED SEP 30 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................48-64.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................78-100 PCT.
* 24 HR TREND..................6 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..LIGHT AND VARIABLE IN THE EVENING
BECOMING NORTH 5 TO 10 MPH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............NORTH 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............3 PERCENT.
THURSDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................75-87.
* 24 HR TREND..................12 DEGREES WARMER.
* MIN HUMIDITY....................37-50 PCT.
* 24 HR TREND..................17 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHEAST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
THURSDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................52-68.
* 24 HR TREND..................4 DEGREES WARMER.
* MAX HUMIDITY....................63-86 PCT.
* 24 HR TREND..................15 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHEAST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
FRIDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................75-89.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................31-45 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............EAST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
SATURDAY
CLEAR. LOWS 52-70. HIGHS 74-88. EAST WINDS 15 TO
25 MPH.
SUNDAY
CLEAR. LOWS 53-71. HIGHS 75-89. EAST WINDS 15 TO
25 MPH.
MONDAY
MOSTLY CLEAR. LOWS 55-71. HIGHS 73-89. EAST WINDS 15 TO
25 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 54-71. HIGHS 75-90.
WEDNESDAY
MOSTLY CLEAR. LOWS 54-73. HIGHS 79-94.
CAZ232-010715-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
1204 PM PDT WED SEP 30 2026
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................67-75.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................43-76 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTH 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
THURSDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................90-98.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................20-27 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHEAST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
THURSDAY NIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................71-78.
* 24 HR TREND..................4 DEGREES WARMER.
* MAX HUMIDITY....................38-62 PCT.
* 24 HR TREND..................11 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 10 MPH.
* WINDS...10000 FT MSL............NORTHEAST 10 TO 20 MPH IN THE
EVENING BECOMING EAST AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
FRIDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................91-100.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................20-30 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 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...............0 PERCENT.
EXTENDED
SATURDAY
CLEAR. LOWS 74-81. HIGHS 91-101. NORTHEAST WINDS 5 TO
15 MPH.
SUNDAY
CLEAR. LOWS 74-81. HIGHS 91-100. NORTHEAST WINDS 5 TO
15 MPH.
MONDAY
CLEAR. LOWS 74-81. HIGHS 91-101. NORTHEAST WINDS 5 TO
10 MPH.
TUESDAY
CLEAR. LOWS 74-81. HIGHS 92-102.
WEDNESDAY
CLEAR. LOWS 74-82. HIGHS 94-104.
CAZ230-010715-
JOSHUA TREE NATIONAL PARK-
1204 PM PDT WED SEP 30 2026
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................62-70.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................30-43 PCT.
* 24 HR TREND..................13 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 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.
THURSDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................83-94.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................15-21 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..LIGHT AND VARIABLE IN THE MORNING
BECOMING EAST 5 TO 10 MPH IN THE AFTERNOON.
* 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...............0 PERCENT.
THURSDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................64-73.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................37-45 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..LIGHT AND VARIABLE IN THE EVENING
BECOMING MOSTLY DOWNSLOPE/DOWNVALLEY AFTER MIDNIGHT.
* WINDS...10000 FT MSL............NORTHEAST 5 TO 15 MPH IN THE
EVENING BECOMING EAST 10 TO 20 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
FRIDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................82-94.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................24-31 PCT.
* 24 HR TREND..................10 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.
* 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.
EXTENDED
SATURDAY
CLEAR. LOWS 64-75. HIGHS 81-94. EAST WINDS 5 TO
15 MPH.
SUNDAY
CLEAR. LOWS 64-75. HIGHS 80-94. EAST WINDS 5 TO 15 MPH.
MONDAY
CLEAR. LOWS 64-75. HIGHS 80-93. NORTHEAST WINDS 5 TO
10 MPH.
TUESDAY
CLEAR. LOWS 64-75. HIGHS 82-95.
WEDNESDAY
CLEAR. LOWS 64-76. HIGHS 84-97.
8 TO 10 DAY OUTLOOK
THURSDAY OCTOBER 8TH THROUGH SATURDAY
OCTOBER 10TH: ABOVE NORMAL TEMPERATURES AND NEAR MEDIAN
PRECIPITATION.
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