Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
754 FNUS55 KPSR 080953 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 253 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. AZZ132-082200- 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- 253 AM MST Tue Sep 8 2026 .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................102-109. * 24 hr trend..................4 degrees warmer. * Min Humidity....................17-22 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............East 5 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. * Mixing Height for Phoenix.......9900 ft AGL. * Transport Wind for Phoenix......West 7 knots. * Dispersion for Phoenix..........Very good. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................80-90. * 24 hr trend..................Little change. * Max Humidity....................47-67 pct. * 24 hr trend..................15 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 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...............4 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................101-107. * 24 hr trend..................Little change. * Min Humidity....................21-28 pct. * 24 hr trend..................5 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............East 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. * Mixing Height for Phoenix.......9000 ft AGL. * Transport Wind for Phoenix......West 7 knots. * Dispersion for Phoenix..........Good. .EXTENDED... .THURSDAY...Mostly clear. Lows 81-91. Highs 102-108. Southwest winds 5 to 15 mph. .FRIDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 77-87. Highs 99-106. South winds 10 to 20 mph. .SATURDAY...Mostly clear. Lows 76-86. Highs 97-104. South winds 10 to 20 mph. .SUNDAY...Mostly clear. Lows 75-85. Highs 96-103. .MONDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 74-84. Highs 95-102. $$ AZZ131-CAZ231-082200- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 253 AM MST Tue Sep 8 2026 /253 AM PDT Tue Sep 8 2026/ .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................104-109. * 24 hr trend..................6 degrees warmer. * Min Humidity....................18-22 pct. * 24 hr trend..................5 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 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...............4 percent. * Mixing Height for Yuma..........11200 ft AGL. * Transport Wind for Yuma.........South 6 knots. * Dispersion for Yuma.............Good. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................81-86. * 24 hr trend..................Little change. * Max Humidity....................50-77 pct. * 24 hr trend..................16 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 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................104-109. * 24 hr trend..................Little change. * Min Humidity....................21-29 pct. * 24 hr trend..................5 pct wetter. * 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...............0 percent. * Mixing Height for Yuma..........9700 ft AGL. * Transport Wind for Yuma.........South 6 knots. * Dispersion for Yuma.............Good. .EXTENDED... .THURSDAY...Mostly clear. Lows 81-86. Highs 106-111. South winds 10 to 20 mph. .FRIDAY...Mostly clear. Lows 79-86. Highs 104-109. South winds 15 to 25 mph. .SATURDAY...Mostly clear. Lows 75-84. Highs 102-107. South winds 10 to 20 mph. .SUNDAY...Clear. Lows 75-81. Highs 100-105. .MONDAY...Mostly clear. Lows 74-81. Highs 99-104. $$ AZZ133-082200- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 253 AM MST Tue Sep 8 2026 .TODAY... * Sky/weather.....................Partly sunny. * Max Temperature.................89-104. * 24 hr trend..................4 degrees warmer. * Min Humidity....................18-27 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..East 5 to 10 mph in the morning becoming west in the afternoon. * Winds...10000 FT MSL............Northeast 5 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............6 percent. .TONIGHT... * Sky/weather.....................Partly cloudy. * 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..Northeast 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................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............6 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................90-104. * 24 hr trend..................Little change. * Min Humidity....................22-31 pct. * 24 hr trend..................4 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............East 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...............7 percent. .EXTENDED... .THURSDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 65-83. Highs 89-103. Southwest winds 5 to 15 mph. .FRIDAY...Partly cloudy with chance of showers and thunderstorms. Lows 63-81. Highs 84-99. Southwest winds 5 to 15 mph. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 63-78. Highs 82-96. Southwest winds 5 to 15 mph. .SUNDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 61-78. Highs 81-96. .MONDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 60-77. Highs 79-94. $$ CAZ232-082200- Imperial County And Eastern Riverside County- 253 AM PDT Tue Sep 8 2026 .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................99-108. * 24 hr trend..................6 degrees warmer. * Min Humidity....................18-27 pct. * 24 hr trend..................6 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. * Winds...10000 FT MSL............Southeast 5 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................81-87. * 24 hr trend..................Little change. * Max Humidity....................40-70 pct. * 24 hr trend..................5 pct wetter. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............East 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................100-109. * 24 hr trend..................Little change. * Min Humidity....................18-30 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming south in the afternoon. * Winds...10000 FT MSL............East 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. .EXTENDED... .THURSDAY...Mostly clear. Lows 82-88. Highs 101-111. Southwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 77-88. Highs 100-110. South winds 10 to 20 mph. .SATURDAY...Mostly clear. Lows 73-84. Highs 97-108. South winds 10 to 20 mph. .SUNDAY...Clear. Lows 73-79. Highs 95-104. .MONDAY...Mostly clear. Lows 72-79. Highs 94-104. $$ CAZ230-082200- Joshua Tree National Park- 253 AM PDT Tue Sep 8 2026 .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................86-100. * 24 hr trend..................6 degrees warmer. * Min Humidity....................22-33 pct. * 24 hr trend..................9 pct drier. * Winds - 20 foot...Slope/Valley..North 5 to 15 mph. * Winds...10000 FT MSL............South 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. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................71-82. * 24 hr trend..................3 degrees warmer. * Max Humidity....................43-57 pct. * 24 hr trend..................6 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...............4 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................89-103. * 24 hr trend..................Little change. * Min Humidity....................20-31 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..North 5 to 15 mph. * Winds...10000 FT MSL............Southeast 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...............2 percent. .EXTENDED... .THURSDAY...Mostly clear. Lows 70-84. Highs 90-105. West winds 5 to 15 mph. .FRIDAY...Clear. Lows 67-84. Highs 89-103. Southwest winds 10 to 20 mph. .SATURDAY...Clear. Lows 63-79. Highs 86-101. Southwest winds 10 to 20 mph. .SUNDAY...Clear. Lows 63-74. Highs 84-98. .MONDAY...Clear. Lows 63-74. Highs 82-97. $$ .8 TO 10 DAY OUTLOOK...Tuesday September 15th through Thursday September 17th: Above normal temperatures and above median precipitation.