Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
281 FNUS55 KPSR 132030 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 130 PM 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. AZZ132-140830- 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- 130 PM MST Thu Aug 13 2026 .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....................54-67 pct. * 24 hr trend..................8 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...............13 percent. .FRIDAY... * Sky/weather.....................Partly sunny. * Max Temperature.................95-102. * 24 hr trend..................Little change. * Min Humidity....................24-30 pct. * 24 hr trend..................5 pct drier. * Winds - 20 foot...Slope/Valley..South 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...............3 percent. * Mixing Height for Phoenix.......10300 ft AGL. * Transport Wind for Phoenix......Southwest 7 knots. * Dispersion for Phoenix..........Very good. .FRIDAY NIGHT... * Sky/weather.....................Partly cloudy. * Min Temperature.................76-86. * 24 hr trend..................Little change. * Max Humidity....................46-58 pct. * 24 hr trend..................9 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the evening becoming southeast after midnight. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............3 percent. .SATURDAY... * Sky/weather.....................Partly sunny. * Max Temperature.................99-105. * 24 hr trend..................3 degrees warmer. * Min Humidity....................19-24 pct. * 24 hr trend..................5 pct drier. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. * Mixing Height for Phoenix.......10600 ft AGL. * Transport Wind for Phoenix......Southwest 5 knots. * Dispersion for Phoenix..........Good. .EXTENDED... .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 82-92. Highs 105-112. Southwest winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 82-92. Highs 105-111. .THURSDAY...Mostly clear. Lows 81-91. Highs 104-111. $$ AZZ131-CAZ231-140830- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 130 PM MST Thu Aug 13 2026 /130 PM PDT Thu Aug 13 2026/ .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....................52-65 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................20 percent in the evening becoming 0 percent after midnight. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............14 percent. .FRIDAY... * Sky/weather.....................Partly sunny. * Max Temperature.................98-103. * 24 hr trend..................Little change. * Min Humidity....................28-33 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. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............8 percent. * Mixing Height for Yuma..........9400 ft AGL. * Transport Wind for Yuma.........South 9 knots. * Dispersion for Yuma.............Very good. .FRIDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................76-81. * 24 hr trend..................Little change. * Max Humidity....................53-64 pct. * 24 hr trend..................Little change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Light and variable in the evening becoming southeast 5 to 15 mph after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. .SATURDAY... * Sky/weather.....................Partly sunny. * Max Temperature.................101-106. * 24 hr trend..................3 degrees warmer. * Min Humidity....................21-26 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................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. * Mixing Height for Yuma..........9500 ft AGL. * Transport Wind for Yuma.........South 7 knots. * Dispersion for Yuma.............Good. .EXTENDED... .SUNDAY...Partly cloudy. Lows 80-85. Highs 104-109. Southwest winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 81-86. Highs 107-112. Southwest winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 82-87. Highs 107-112. South winds 10 to 20 mph. .WEDNESDAY...Mostly clear. Lows 81-86. Highs 107-112. .THURSDAY...Mostly clear. Lows 81-86. Highs 106-111. $$ AZZ133-140830- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 130 PM MST Thu Aug 13 2026 .TONIGHT... * Sky/weather.....................Partly cloudy. Slight chance of showers and thunderstorms . * Min Temperature.................61-76. * 24 hr trend..................Little change. * Max Humidity....................66-90 pct. * 24 hr trend..................8 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the evening becoming south 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...............18 percent. .FRIDAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms. * Max Temperature.................81-96. * 24 hr trend..................Little change. * Min Humidity....................28-41 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 15 mph. * Chance of Precip................10 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............9 percent. .FRIDAY NIGHT... * Sky/weather.....................Partly cloudy. * Min Temperature.................61-77. * 24 hr trend..................Little change. * Max Humidity....................53-75 pct. * 24 hr trend..................13 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the evening becoming northeast after midnight. * Winds...10000 FT MSL............Southwest 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............3 percent. .SATURDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................86-100. * 24 hr trend..................5 degrees warmer. * Min Humidity....................21-30 pct. * 24 hr trend..................9 pct drier. * Winds - 20 foot...Slope/Valley..Northeast 5 to 10 mph in the morning becoming west in the afternoon. * 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...............1 percent. .EXTENDED... .SUNDAY...Partly cloudy. Lows 63-81. Highs 89-103. North winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 65-83. Highs 90-106. East winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 66-84. Highs 91-107. East winds 5 to 15 mph. .WEDNESDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 67-84. Highs 91-106. .THURSDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 66-83. Highs 91-105. $$ CAZ232-140830- Imperial County And Eastern Riverside County- 130 PM PDT Thu Aug 13 2026 .TONIGHT... * Sky/weather.....................Mostly cloudy. * Min Temperature.................77-83. * 24 hr trend..................Little change. * Max Humidity....................43-61 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 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...............3 percent. .FRIDAY... * Sky/weather.....................Partly sunny in the morning becoming sunny 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. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............6 percent. .FRIDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................77-82. * 24 hr trend..................Little change. * Max Humidity....................46-59 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the evening becoming west after midnight. * Winds...10000 FT MSL............Light and variable in the evening becoming southeast 5 to 15 mph after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............3 percent. .SATURDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................96-105. * 24 hr trend..................Little change. * Min Humidity....................20-29 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..Northeast 5 to 10 mph in the morning becoming south in the afternoon. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. .EXTENDED... .SUNDAY...Mostly clear. Lows 80-86. Highs 99-108. West winds 5 to 15 mph. .MONDAY...Mostly clear. Lows 81-87. Highs 102-111. West winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 81-87. Highs 102-112. Southwest winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 81-87. Highs 102-112. .THURSDAY...Mostly clear. Lows 80-86. Highs 101-111. $$ CAZ230-140830- Joshua Tree National Park- 130 PM PDT Thu Aug 13 2026 .TONIGHT... * Sky/weather.....................Mostly cloudy. * Min Temperature.................65-80. * 24 hr trend..................Little change. * Max Humidity....................42-54 pct. * 24 hr trend..................8 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...............2 percent. .FRIDAY... * Sky/weather.....................Partly sunny in the morning becoming sunny in the afternoon. * Max Temperature.................83-97. * 24 hr trend..................Little change. * Min Humidity....................22-30 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................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. .FRIDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................65-79. * 24 hr trend..................Little change. * Max Humidity....................45-56 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the evening becoming west after midnight. * Winds...10000 FT MSL............Light and variable in the evening becoming southeast 5 to 15 mph after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. .SATURDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................86-99. * 24 hr trend..................Little change. * Min Humidity....................22-30 pct. * 24 hr trend..................Little change. * Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning becoming south 5 to 15 mph in the afternoon. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. .EXTENDED... .SUNDAY...Mostly clear. Lows 68-82. Highs 88-102. 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. Southwest winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Mostly clear. Lows 70-83. Highs 92-106. .THURSDAY...Mostly clear. Lows 69-83. Highs 91-105. $$ .8 TO 10 DAY OUTLOOK...Friday August 21st through Sunday August 23rd: Above normal temperatures and above median precipitation.