FNUS55 KPSR 082019 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 119 PM MST Wed Jul 8 2026 .DISCUSSION... Gusty thunderstorm outflow winds with abrupt wind shifts and lightning over eastern districts will be the main fire weather concern this evening, and to a lesser extent Thursday and Friday as the storm potential lessens. The strongest gusts above 30 mph early this evening will have an easterly component. Otherwise, afternoon humidity levels will generally fall in a 10-20% range with the upper end of the range over eastern districts. Overnight recovery will vary widely with poor conditions near 20% in western districts to good levels 50-60% in eastern districts. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-090830- 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- 119 PM MST Wed Jul 8 2026 .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................79-89. * 24 hr trend..................Little change. * Max Humidity....................34-47 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............West 5 to 15 mph in the evening becoming southwest after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. .THURSDAY... * Sky/weather.....................Sunny. * Max Temperature.................107-114. * 24 hr trend..................Little change. * Min Humidity....................14-20 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. * Mixing Height for Phoenix.......11300 ft AGL. * Transport Wind for Phoenix......West 13 knots. * Dispersion for Phoenix..........Excellent. .THURSDAY NIGHT... * Sky/weather.....................Clear. * Min Temperature.................79-89. * 24 hr trend..................Little change. * Max Humidity....................38-51 pct. * 24 hr trend..................5 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph in the evening becoming south 5 to 10 mph 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...............0 percent. .FRIDAY... * Sky/weather.....................Sunny. * Max Temperature.................105-112. * 24 hr trend..................Little change. * Min Humidity....................16-22 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 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. * Mixing Height for Phoenix.......9400 ft AGL. * Transport Wind for Phoenix......West 9 knots. * Dispersion for Phoenix..........Very good. .EXTENDED... .SATURDAY...Mostly clear. Lows 78-88. Highs 104-110. Southwest winds 5 to 15 mph. .SUNDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 79-89. Highs 104-110. Southwest winds 5 to 15 mph. .MONDAY...Partly cloudy withslight chance of showers and thunderstorms. Lows 79-89. Highs 101-108. South winds 5 to 10 mph. .TUESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 80-90. Highs 102-108. .WEDNESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 79-89. Highs 103-109. $$ AZZ131-CAZ231-090830- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 119 PM MST Wed Jul 8 2026 /119 PM PDT Wed Jul 8 2026/ .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................78-83. * 24 hr trend..................3 degrees cooler. * Max Humidity....................35-54 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..South 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. .THURSDAY... * Sky/weather.....................Sunny. * Max Temperature.................110-116. * 24 hr trend..................Little change. * Min Humidity....................13-21 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 10 to 20 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. * Mixing Height for Yuma..........4900 ft AGL. * Transport Wind for Yuma.........South 15 knots. * Dispersion for Yuma.............Very good. .THURSDAY NIGHT... * Sky/weather.....................Clear. * Min Temperature.................78-83. * 24 hr trend..................Little change. * Max Humidity....................41-58 pct. * 24 hr trend..................6 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Northwest 5 to 15 mph in the evening becoming southwest after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .FRIDAY... * Sky/weather.....................Sunny. * Max Temperature.................108-114. * 24 hr trend..................Little change. * Min Humidity....................13-21 pct. * 24 hr trend..................Little change. * Winds - 20 foot...Slope/Valley..South 10 to 20 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. * Mixing Height for Yuma..........5100 ft AGL. * Transport Wind for Yuma.........South 14 knots. * Dispersion for Yuma.............Very good. .EXTENDED... .SATURDAY...Mostly clear. Lows 78-84. Highs 106-112. South winds 10 to 20 mph. .SUNDAY...Partly cloudy. Lows 79-84. Highs 105-111. South winds 5 to 15 mph. .MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 80-85. Highs 103-108. South winds 5 to 15 mph. .TUESDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 81-86. Highs 104-109. .WEDNESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 81-86. Highs 106-111. $$ AZZ133-090830- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 119 PM MST Wed Jul 8 2026 .TONIGHT... * Sky/weather.....................Mostly clear. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................64-82. * 24 hr trend..................Little change. * Max Humidity....................33-56 pct. * 24 hr trend..................Little RH change.* Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph in the evening becoming north 5 to 10 mph after midnight. * Winds...10000 FT MSL............Northwest 10 to 20 mph. * Chance of Precip................20 percent in the evening becoming 0 percent after midnight. * CWR (>= 0.10 IN)................5 percent. * Chance of Thunder...............15 percent. .THURSDAY... * Sky/weather.....................Sunny. * Max Temperature.................95-109. * 24 hr trend..................Little change. * Min Humidity....................13-19 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the morning becoming west 10 to 20 mph in the afternoon. * Winds...10000 FT MSL............West 10 to 15 mph. * Chance of Precip................10 percent. * CWR (>= 0.10 IN)................5 percent. * Chance of Thunder...............10 percent. .THURSDAY NIGHT... * Sky/weather.....................Clear. * Min Temperature.................66-84. * 24 hr trend..................Little change. * Max Humidity....................37-52 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............West 10 to 20 mph. * Chance of Precip................5 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............5 percent. .FRIDAY... * Sky/weather.....................Sunny. * Max Temperature.................94-108. * 24 hr trend..................Little change. * Min Humidity....................15-21 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 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...............0 percent. .EXTENDED... .SATURDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 66-82. Highs 95-108. West winds 10 to 20 mph. .SUNDAY...Partly cloudy with chance of showers and thunderstorms. Lows 64-82. Highs 93-107. South winds 5 to 15 mph. .MONDAY...Partly cloudy with chance of showers and thunderstorms. Lows 63-81. Highs 88-103. East winds 5 to 15 mph. .TUESDAY...Partly cloudy with chance of showers and thunderstorms. Lows 63-81. Highs 87-102. .WEDNESDAY...Partly cloudy with chance of showers and thunderstorms. Lows 63-81. Highs 87-103. $$ CAZ232-090830- Imperial County And Eastern Riverside County- 119 PM PDT Wed Jul 8 2026 .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................79-85. * 24 hr trend..................Little change. * Max Humidity....................20-55 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. .THURSDAY... * Sky/weather.....................Sunny. * Max Temperature.................106-118. * 24 hr trend..................Little change. * Min Humidity....................7-18 pct. * 24 hr trend..................Little RH change. * 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...............0 percent. .THURSDAY NIGHT... * Sky/weather.....................Clear. * Min Temperature.................78-84. * 24 hr trend..................Little change. * Max Humidity....................19-63 pct. * 24 hr trend..................5 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...............0 percent. .FRIDAY... * Sky/weather.....................Sunny. * Max Temperature.................104-116. * 24 hr trend..................Little change. * Min Humidity....................7-17 pct. * 24 hr trend..................Little change. * Winds - 20 foot...Slope/Valley..South 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. .EXTENDED... .SATURDAY...Partly cloudy. Lows 78-86. Highs 101-111. South winds 5 to 15 mph. .SUNDAY...Partly cloudy. Lows 80-87. Highs 100-110. South winds 5 to 15 mph. .MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 81-87. Highs 99-108. South winds 5 to 15 mph. .TUESDAY...Mostly clear with slight chance of showers. Lows 82-88. Highs 101-111. .WEDNESDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 82-88. Highs 102-111. $$ CAZ230-090830- Joshua Tree National Park- 119 PM PDT Wed Jul 8 2026 .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................72-81. * 24 hr trend..................Little change. * Max Humidity....................15-22 pct. * 24 hr trend..................5 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Light and variable. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .THURSDAY... * Sky/weather.....................Sunny. * Max Temperature.................97-111. * 24 hr trend..................Little change. * Min Humidity....................6-10 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............Southwest 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .THURSDAY NIGHT... * Sky/weather.....................Clear. * Min Temperature.................72-81. * 24 hr trend..................Little change. * Max Humidity....................15-21 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............West 5 to 15 mph in the evening becoming southwest after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .FRIDAY... * Sky/weather.....................Sunny. * Max Temperature.................95-109. * 24 hr trend..................Little change. * Min Humidity....................7-11 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. .EXTENDED... .SATURDAY...Partly cloudy. Lows 72-83. Highs 93-106. South winds 5 to 15 mph. .SUNDAY...Partly cloudy. Lows 73-83. Highs 91-105. Southwest winds 5 to 15 mph. .MONDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 72-84. Highs 89-102. Southwest winds 5 to 15 mph. .TUESDAY...Mostly clear with slight chance of showers and thunderstorms. Lows72-85. Highs 91-104. .WEDNESDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 73-85. Highs 91-104. $$ .8 TO 10 DAY OUTLOOK...Thursday July 16th through Saturday July 18th: Above normal temperatures and above median precipitation.