Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
714 FNUS55 KPSR 081839 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 1139 AM MST Tue Sep 8 2026 .DISCUSSION... Above normal temperatures will prevail through the end of the work week. Afternoon minimum humidities will generally range between 18-30% areawide through much of the week following fair to good overnight recoveries between 35-70%. Fairly typical diurnal winds with occasional afternoon upslope breeziness can be expected through the middle of the week. Rain and thunderstorm chances will remain low and mostly limited to the eastern Arizona high terrain through midweek before slight chances become introduced to the lower deserts of at least the eastern districts during the latter half of the week. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-090645- 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- 1139 AM MST Tue Sep 8 2026 .TONIGHT... * Sky/weather.....................Partly cloudy. * Min Temperature.................80-90. * 24 hr trend..................Little change. * Max Humidity....................46-67 pct. * 24 hr trend..................14 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 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...............3 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................102-107. * 24 hr trend..................Little change. * Min Humidity....................20-28 pct. * 24 hr trend..................5 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 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...............4 percent. * Mixing Height for Phoenix.......7700 ft AGL. * Transport Wind for Phoenix......West 8 knots. * Dispersion for Phoenix..........Good. .WEDNESDAY NIGHT... * Sky/weather.....................Partly cloudy. * Min Temperature.................81-91. * 24 hr trend..................Little change. * Max Humidity....................48-61 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southwest 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...............4 percent. .THURSDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................102-108. * 24 hr trend..................Little change. * Min Humidity....................21-26 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............North 5 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. * Mixing Height for Phoenix.......8700 ft AGL. * Transport Wind for Phoenix......West 11 knots. * Dispersion for Phoenix..........Very good. .EXTENDED... .FRIDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 79-89. Highs 100-106. South winds 10 to 20 mph. .SATURDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 77-87. Highs 98-105. South winds 10 to 20 mph. .SUNDAY...Mostly clear. Lows 76-86. Highs 98-105. South winds 5 to 15 mph. .MONDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 75-85. Highs 96-103. .TUESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 73-83. Highs 93-100. $$ AZZ131-CAZ231-090645- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 1139 AM MST Tue Sep 8 2026 /1139 AM PDT Tue Sep 8 2026/ .TONIGHT... * Sky/weather.....................Partly cloudy. * Min Temperature.................81-86. * 24 hr trend..................Little change. * Max Humidity....................47-75 pct. * 24 hr trend..................13 pct wetter. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the evening becoming south after midnight. * Winds...10000 FT MSL............East 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............3 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................105-110. * 24 hr trend..................Little change. * Min Humidity....................20-29 pct. * 24 hr trend..................4 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............East 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. * Mixing Height for Yuma..........7400 ft AGL. * Transport Wind for Yuma.........South 6 knots. * Dispersion for Yuma.............Good. .WEDNESDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................82-87. * 24 hr trend..................Little change. * Max Humidity....................48-72 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............East 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............5 percent. .THURSDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................106-111. * 24 hr trend..................Little change. * Min Humidity....................21-27 pct. * 24 hr trend..................Little change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Southeast 5 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. * Mixing Height for Yuma..........7800 ft AGL. * Transport Wind for Yuma.........South 10 knots. * Dispersion for Yuma.............Very good. .EXTENDED... .FRIDAY...Mostly clear. Lows 81-87. Highs 104-109. South winds 15 to 25 mph. .SATURDAY...Clear. Lows 77-85. Highs 102-107. South winds 10 to 20 mph. .SUNDAY...Clear. Lows 77-83. Highs 101-106. South winds 10 to 20 mph. .MONDAY...Clear. Lows 76-82. Highs 100-105. .TUESDAY...Mostly clear. Lows 74-81. Highs 98-103. $$ AZZ133-090645- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 1139 AM MST Tue Sep 8 2026 .TONIGHT... * Sky/weather.....................Partly cloudy. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................66-82. * 24 hr trend..................Little change. * Max Humidity....................48-68 pct. * 24 hr trend..................5 pct wetter. * Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the evening becoming southeast after midnight. * Winds...10000 FT MSL............North 5 to 15 mph in the evening becoming light and variable after midnight. * Chance of Precip................10 percent in the evening becoming 0 percent after midnight. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............10 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................91-104. * 24 hr trend..................Little change. * Min Humidity....................21-31 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Northeast 5 to 15 mph in the morning becoming light and variable in the afternoon. * Chance of Precip................0 percent in the morning becoming 20 percent in the afternoon. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............19 percent. .WEDNESDAY NIGHT... * Sky/weather.....................Partly cloudy. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................65-83. * 24 hr trend..................Little change. * Max Humidity....................50-72 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the evening becoming northeast after midnight. * Winds...10000 FT MSL............North 10 to 20 mph. * Chance of Precip................20 percent in the evening becoming 0 percent after midnight. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............17 percent. .THURSDAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................89-104. * 24 hr trend..................Little change. * Min Humidity....................22-31 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 10 mph in the morning becoming west 5 to 15 mph 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...............4 percent. .EXTENDED... .FRIDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 63-82. Highs 86-100. Southwest winds 10 to 20 mph. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 63-79. Highs 84-98. Southwest winds 5 to 15 mph. .SUNDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 63-79. Highs 83-98. Southwest winds 5 to 15 mph. .MONDAY...Partly cloudy with chance of showers and thunderstorms. Lows 61-79. Highs 81-95. .TUESDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 60-76. Highs 79-93. $$ CAZ232-090645- Imperial County And Eastern Riverside County- 1139 AM PDT Tue Sep 8 2026 .TONIGHT... * Sky/weather.....................Partly cloudy. * Min Temperature.................83-88. * 24 hr trend..................3 degrees warmer. * Max Humidity....................36-65 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the evening becoming south after midnight. * Winds...10000 FT MSL............East 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............3 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................101-110. * 24 hr trend..................Little change. * Min Humidity....................17-29 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southeast 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...............5 percent. .WEDNESDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................83-89. * 24 hr trend..................Little change. * Max Humidity....................36-67 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southwest 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...............5 percent. .THURSDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................101-111. * 24 hr trend..................Little change. * Min Humidity....................19-28 pct. * 24 hr trend..................Little change. * Winds - 20 foot...Slope/Valley..South 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...............3 percent. .EXTENDED... .FRIDAY...Mostly clear. Lows 79-89. Highs 100-111. South winds 10 to 20 mph. .SATURDAY...Clear. Lows 74-85. Highs 98-108. South winds 10 to 20 mph. .SUNDAY...Clear. Lows 74-81. Highs 96-106. South winds 5 to 15 mph. .MONDAY...Clear. Lows 74-81. Highs 95-105. .TUESDAY...Mostly clear. Lows 72-81. Highs 93-103. $$ CAZ230-090645- Joshua Tree National Park- 1139 AM PDT Tue Sep 8 2026 .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................72-84. * 24 hr trend..................5 degrees warmer. * Max Humidity....................40-53 pct. * 24 hr trend..................12 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. * Winds...10000 FT MSL............Light and variable 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...............2 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................90-104. * 24 hr trend..................4 degrees warmer. * Min Humidity....................19-29 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning becoming east 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...............4 percent. .WEDNESDAY NIGHT... * Sky/weather.....................Partly cloudy. * Min Temperature.................73-86. * 24 hr trend..................Little change. * Max Humidity....................38-51 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Light and variable in the evening becoming east 5 to 15 mph after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. .THURSDAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................91-105. * 24 hr trend..................Little change. * Min Humidity....................19-30 pct. * 24 hr trend..................Little RH change. * 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...............8 percent. .EXTENDED... .FRIDAY...Clear. Lows 69-86. Highs 90-104. Southwest winds 10 to 20 mph. .SATURDAY...Clear. Lows 65-81. Highs 87-102. Southwest winds 10 to 20 mph. .SUNDAY...Clear. Lows 65-76. Highs 85-99. Southwest winds 5 to 15 mph. .MONDAY...Clear. Lows 65-76. Highs 84-98. .TUESDAY...Mostly clear. Lows 63-75. Highs 82-96. $$ .8 TO 10 DAY OUTLOOK...Tuesday September 15th through Thursday September 17th: Above normal temperatures and above median precipitation.