Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
364 FNUS55 KPSR 130748 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 1248 AM MST Thu Aug 13 2026 .DISCUSSION... Elevated humidity levels, below normal temperatures, and lingering chances for showers and a few thunderstorms are expected today before much drier air filters into the region Friday into the weekend. Afternoon MinRHs of 30-50% today will drop to 20-30% by Saturday and into the teens across the lower deserts starting Sunday. Overnight recoveries will remain good to excellent. Winds will remain predominately out of the south southwest much of the period with overnight light easterly downsloping winds over the eastern districts. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-132000- 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- 1248 AM MST Thu Aug 13 2026 .TODAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................94-102. * 24 hr trend..................Little change. * Min Humidity....................28-37 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph in the morning becoming south 5 to 10 mph in the afternoon. * Winds...10000 FT MSL............Southwest 10 to 20 mph. * Chance of Precip................0 percent in the morning becoming 20 percent in the afternoon. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............16 percent. * Mixing Height for Phoenix.......12200 ft AGL. * Transport Wind for Phoenix......Southwest 10 knots. * Dispersion for Phoenix..........Excellent. .TONIGHT... * Sky/weather.....................Partly cloudy. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................75-85. * 24 hr trend..................Little change. * Max Humidity....................56-69 pct. * 24 hr trend..................7 pct drier. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................10 percent in the evening becoming 0 percent after midnight. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............12 percent. .FRIDAY... * Sky/weather.....................Partly sunny. * Max Temperature.................94-102. * 24 hr trend..................Little change. * Min Humidity....................25-31 pct. * 24 hr trend..................5 pct drier. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. * Mixing Height for Phoenix.......10100 ft AGL. * Transport Wind for Phoenix......South 7 knots. * Dispersion for Phoenix..........Good. .EXTENDED... .SATURDAY...Partly cloudy. Lows 76-86. Highs 98-105. South winds 5 to 10 mph. .SUNDAY...Partly cloudy. Lows 79-89. Highs 102-109. Southwest winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 81-91. Highs 105-112. Southwest winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 83-93. Highs 106-112. .WEDNESDAY...Mostly clear with slight chance of showers. Lows 82-92. Highs 105-111. $$ AZZ131-CAZ231-132000- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 1248 AM MST Thu Aug 13 2026 /1248 AM PDT Thu Aug 13 2026/ .TODAY... * Sky/weather.....................Partly sunny. * Max Temperature.................98-103. * 24 hr trend..................3 degrees cooler. * Min Humidity....................28-36 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................10 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............11 percent. * Mixing Height for Yuma..........8700 ft AGL. * Transport Wind for Yuma.........Southwest 7 knots. * Dispersion for Yuma.............Good. .TONIGHT... * Sky/weather.....................Mostly cloudy. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................78-83. * 24 hr trend..................Little change. * Max Humidity....................53-64 pct. * 24 hr trend..................7 pct drier. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................10 percent in the evening becoming 0 percent after midnight. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............11 percent. .FRIDAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................98-103. * 24 hr trend..................Little change. * Min Humidity....................27-33 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................0 percent in the morning becoming 10 percent in the afternoon. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............14 percent. * Mixing Height for Yuma..........11000 ft AGL. * Transport Wind for Yuma.........South 7 knots. * Dispersion for Yuma.............Very good. .EXTENDED... .SATURDAY...Mostly clear. Lows 77-85. Highs 101-106. South winds 5 to 15 mph. .SUNDAY...Mostly clear. Lows 81-86. Highs 104-109. South winds 5 to 15 mph. .MONDAY...Mostly clear. Lows 82-87. Highs 107-112. Southwest winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 82-87. Highs 108-113. .WEDNESDAY...Mostly clear. Lows 82-87. Highs 107-112. $$ AZZ133-132000- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 1248 AM MST Thu Aug 13 2026 .TODAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms. * Max Temperature.................78-94. * 24 hr trend..................3 degrees cooler. * Min Humidity....................34-52 pct. * 24 hr trend..................7 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............Southwest 10 to 20 mph. * Chance of Precip................50 percent. * CWR (>= 0.10 IN)................30 percent. * Chance of Thunder...............24 percent. .TONIGHT... * Sky/weather.....................Partly cloudy. Slight chance of showers and thunderstorms. * Min Temperature.................61-76. * 24 hr trend..................Little change. * Max Humidity....................64-90 pct. * 24 hr trend..................8 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the evening becoming east after midnight. * Winds...10000 FT MSL............Southwest 10 to 15 mph. * Chance of Precip................20 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............17 percent. .FRIDAY... * Sky/weather.....................Partly sunny. * Max Temperature.................81-96. * 24 hr trend..................Little change. * Min Humidity....................29-43 pct. * 24 hr trend..................8 pct drier. * Winds - 20 foot...Slope/Valley..South 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............Southwest 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .EXTENDED... .SATURDAY...Partly cloudy. Lows 61-80. Highs 86-100. Northwest winds 5 to 10 mph. .SUNDAY...Partly cloudy. Lows 64-82. Highs 88-104. East winds 5 to 10 mph. .MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 65-83. Highs 90-106. East winds 5 to 15 mph. .TUESDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 66-84. Highs 91-107. .WEDNESDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 67-84. Highs 91-106. $$ CAZ232-132000- Imperial County And Eastern Riverside County- 1248 AM PDT Thu Aug 13 2026 .TODAY... * Sky/weather.....................Mostly cloudy. * Max Temperature.................93-103. * 24 hr trend..................3 degrees cooler. * Min Humidity....................21-30 pct. * 24 hr trend..................Little RH change. * 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...............0 percent. .TONIGHT... * Sky/weather.....................Mostly cloudy. * Min Temperature.................77-83. * 24 hr trend..................Little change. * Max Humidity....................44-62 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Southwest 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .FRIDAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................94-103. * 24 hr trend..................Little change. * Min Humidity....................23-31 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................0 percent in the morning becoming 10 percent in the afternoon. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............12 percent. .EXTENDED... .SATURDAY...Mostly clear. Lows 77-85. Highs 96-104. South winds 5 to 10 mph. .SUNDAY...Mostly clear. Lows 80-87. Highs 99-108. West winds 5 to 15 mph. .MONDAY...Mostly clear. Lows 81-87. Highs 101-111. West winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 81-87. Highs 102-112. .WEDNESDAY...Mostly clear. Lows 81-87. Highs 102-112. $$ CAZ230-132000- Joshua Tree National Park- 1248 AM PDT Thu Aug 13 2026 .TODAY... * Sky/weather.....................Mostly cloudy. * Max Temperature.................82-96. * 24 hr trend..................4 degrees cooler. * Min Humidity....................22-32 pct. * 24 hr trend..................Little RH change. * 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...............0 percent. .TONIGHT... * Sky/weather.....................Mostly cloudy. * Min Temperature.................65-80. * 24 hr trend..................Little change. * Max Humidity....................44-55 pct. * 24 hr trend..................7 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Southwest 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .FRIDAY... * Sky/weather.....................Partly sunny in the morning becoming sunny in the afternoon. * Max Temperature.................84-97. * 24 hr trend..................Little change. * Min Humidity....................23-30 pct. * 24 hr trend..................Little change. * 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...............0 percent. .EXTENDED... .SATURDAY...Mostly clear. Lows 65-81. Highs 85-99. Southwest winds 5 to 15 mph. .SUNDAY...Mostly clear. Lows 68-83. Highs 89-102. West winds 5 to 15 mph. .MONDAY...Mostly clear. Lows 69-83. Highs 91-105. West winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 70-83. Highs 92-106. .WEDNESDAY...Mostly clear. Lows 70-83. Highs 92-106. $$ .8 TO 10 DAY OUTLOOK...Thursday August 25th through Saturday August 22nd: Above normal temperatures and above median precipitation.