Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
875 FNUS55 KPSR 272308 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 408 PM MST Sun Sep 27 2026 .DISCUSSION... Little to no fire weather concerns are expected over the next few days as near to below normal temperatures, elevated RHs, and increasing shower and thunderstorm chances will be seen across the region through Tuesday. Chances for wetting rain between 40-80% should limit any threat of dry lightning starts. Outside of enhanced gusts associated with stronger storms and some marginal northwesterly breeziness for the western districts Tuesday, winds will follow light and diurnal trends otherwise. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-281115- 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- 408 PM MST Sun Sep 27 2026 .TONIGHT... * Sky/weather.....................Mostly cloudy. Slight chance of showers in the evening. slight chance of thunderstorms . chance of showers after midnight. * Min Temperature.................69-79. * 24 hr trend..................4 degrees cooler. * Max Humidity....................62-81 pct. * 24 hr trend..................28 pct wetter. * Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 20 mph in the evening becoming southwest 20 to 30 mph after midnight. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................20 percent west portion...10 percent east portion. * Chance of Thunder...............11 percent. .MONDAY... * Sky/weather.....................Mostly cloudy. Chance of showers and slight chance of thunderstorms. * Max Temperature.................77-85. * 24 hr trend..................13 degrees cooler. * Min Humidity....................48-61 pct. * 24 hr trend..................31 pct wetter. * Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning becoming east in the afternoon. * Winds...10000 FT MSL............Southwest 25 to 35 mph. * Chance of Precip................50 percent. * CWR (>= 0.10 IN)................50 percent west portion...40 percent east portion. * Chance of Thunder...............19 percent. * Mixing Height for Phoenix.......2100 ft AGL. * Transport Wind for Phoenix......Northeast 7 knots. * Dispersion for Phoenix..........Marginal. .MONDAY NIGHT... * Sky/weather.....................Partly cloudy in the evening becoming mostly cloudy after midnight. Slight chance of thunderstorms in the evening. chance of showers . slight chance of thunderstorms after midnight. * Min Temperature.................63-73. * 24 hr trend..................6 degrees cooler. * Max Humidity....................78-100 pct. * 24 hr trend..................19 pct wetter. * Winds - 20 foot...Slope/Valley..Northeast 5 to 15 mph. * Winds...10000 FT MSL............Southwest 20 to 30 mph. * Chance of Precip................70 percent. * CWR (>= 0.10 IN)................60 percent west portion...80 percent east portion. * Chance of Thunder...............20 percent. .TUESDAY... * Sky/weather.....................Partly sunny. Chance of showers and slight chance of thunderstorms . * Max Temperature.................77-86. * 24 hr trend..................Little change. * Min Humidity....................34-53 pct. * 24 hr trend..................8 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. * Winds...10000 FT MSL............Northwest 20 to 30 mph. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................20 percent west portion...60 percent east portion. * Chance of Thunder...............14 percent. * Mixing Height for Phoenix.......9700 ft AGL. * Transport Wind for Phoenix......West 16 knots. * Dispersion for Phoenix..........Excellent. .EXTENDED... .WEDNESDAY...Clear. Lows 61-71. Highs 82-92. North winds 5 to 10 mph. .THURSDAY...Clear. Lows 64-74. Highs 86-94. Northeast winds 5 to 10 mph. .FRIDAY...Clear. Lows 68-78. Highs 87-96. East winds 10 to 20 mph. .SATURDAY...Clear. Lows 68-78. Highs 87-96. .SUNDAY...Clear. Lows 68-78. Highs 89-98. $$ AZZ131-CAZ231-281115- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 408 PM MST Sun Sep 27 2026 /408 PM PDT Sun Sep 27 2026/ .TONIGHT... * Sky/weather.....................Mostly cloudy. Slight chance of showers in the evening becoming chance of showers and slight chance of thunderstorms after midnight. * Min Temperature.................70-76. * 24 hr trend..................6 degrees cooler. * Max Humidity....................68-81 pct. * 24 hr trend..................34 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Southwest 15 to 25 mph in the evening becoming 25 to 35 mph after midnight. * Chance of Precip................50 percent. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............9 percent. .MONDAY... * Sky/weather.....................Mostly cloudy. Chance of showers in the morning. slight chance of thunderstorms . slight chance of showers in the afternoon. * Max Temperature.................84-89. * 24 hr trend..................10 degrees cooler. * Min Humidity....................48-55 pct. * 24 hr trend..................27 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............Southwest 25 to 35 mph. * Chance of Precip................50 percent. * CWR (>= 0.10 IN)................40 percent. * Chance of Thunder...............16 percent. * Mixing Height for Yuma..........5500 ft AGL. * Transport Wind for Yuma.........Southeast 15 knots. * Dispersion for Yuma.............Very good. .MONDAY NIGHT... * Sky/weather.....................Partly cloudy. Slight chance of thunderstorms in the evening. chance of showers . * Min Temperature.................63-69. * 24 hr trend..................7 degrees cooler. * Max Humidity....................71-97 pct. * 24 hr trend..................6 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the evening becoming north after midnight. * Winds...10000 FT MSL............West 20 to 30 mph. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................30 percent. * Chance of Thunder...............18 percent. .TUESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................85-90. * 24 hr trend..................Little change. * Min Humidity....................27-39 pct. * 24 hr trend..................20 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 10 to 20 mph. * Winds...10000 FT MSL............Northwest 20 to 30 mph in the morning becoming 30 to 40 mph in the afternoon. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. * Mixing Height for Yuma..........10400 ft AGL. * Transport Wind for Yuma.........Northwest 19 knots. * Dispersion for Yuma.............Excellent. .EXTENDED... .WEDNESDAY...Clear. Lows 62-71. Highs 92-97. North winds 5 to 10 mph. .THURSDAY...Clear. Lows 64-75. Highs 93-98. Northeast winds 5 to 10 mph. .FRIDAY...Clear. Lows 67-76. Highs 96-101. East winds 5 to 15 mph. .SATURDAY...Clear. Lows 69-76. Highs 96-101. .SUNDAY...Clear. Lows 69-78. Highs 97-102. $$ AZZ133-281115- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 408 PM MST Sun Sep 27 2026 .TONIGHT... * Sky/weather.....................Mostly cloudy. Slight chance of showers and thunderstorms. * Min Temperature.................59-73. * 24 hr trend..................Little change. * Max Humidity....................59-81 pct. * 24 hr trend..................24 pct wetter. * Winds - 20 foot...Slope/Valley..North 5 to 15 mph. * Winds...10000 FT MSL............South 15 to 25 mph. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............12 percent. .MONDAY... * Sky/weather.....................Partly sunny. Chance of showers and slight chance of thunderstorms. * Max Temperature.................72-84. * 24 hr trend..................9 degrees cooler. * Min Humidity....................42-59 pct. * 24 hr trend..................26 pct wetter. * Winds - 20 foot...Slope/Valley..Northeast 5 to 10 mph in the morning becoming west in the afternoon. * Winds...10000 FT MSL............Southwest 20 to 30 mph. * Chance of Precip................60 percent. * CWR (>= 0.10 IN)................40 percent. * Chance of Thunder...............27 percent. .MONDAY NIGHT... * Sky/weather.....................Mostly cloudy. Chance of showers and thunderstorms in the evening becoming showers and chance of thunderstorms after midnight. * Min Temperature.................56-67. * 24 hr trend..................4 degrees cooler. * Max Humidity....................87-100 pct. * 24 hr trend..................25 pct wetter. * Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the evening becoming east after midnight. * Winds...10000 FT MSL............Southwest 15 to 25 mph. * Chance of Precip................90 percent. * CWR (>= 0.10 IN)................90 percent. * Chance of Thunder...............31 percent. .TUESDAY... * Sky/weather.....................Mostly cloudy. Showers in the morning. chance of thunderstorms . showers likely in the afternoon. * Max Temperature.................64-78. * 24 hr trend..................7 degrees cooler. * Min Humidity....................52-78 pct. * 24 hr trend..................15 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Southwest 15 to 25 mph. * Chance of Precip................90 percent. * CWR (>= 0.10 IN)................90 percent. * Chance of Thunder...............38 percent. .EXTENDED... .WEDNESDAY...Mostly clear with chance of showers. Lows 50-65. Highs 67-81. West winds 5 to 10 mph. .THURSDAY...Clear. Lows 50-69. Highs 74-87. East winds 5 to 15 mph. .FRIDAY...Clear. Lows 52-69. Highs 73-88. East winds 10 to 20 mph. .SATURDAY...Clear. Lows 52-69. Highs 74-88. .SUNDAY...Clear. Lows 53-70. Highs 75-90. $$ CAZ232-281115- Imperial County And Eastern Riverside County- 408 PM PDT Sun Sep 27 2026 .TONIGHT... * Sky/weather.....................Mostly cloudy. Slight chance of showers in the evening becoming chance of showers after midnight. * Min Temperature.................70-77. * 24 hr trend..................6 degrees cooler. * Max Humidity....................62-82 pct. * 24 hr trend..................34 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Southwest 20 to 30 mph. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............7 percent. .MONDAY... * Sky/weather.....................Partly sunny. Chance of showers in the morning. slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................81-91. * 24 hr trend..................7 degrees cooler. * Min Humidity....................29-49 pct. * 24 hr trend..................15 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Southwest 25 to 35 mph. * Chance of Precip................30 percent. * CWR (>= 0.10 IN)................20 percent. * Chance of Thunder...............10 percent. .MONDAY NIGHT... * Sky/weather.....................Mostly clear. Slight chance of thunderstorms in the evening. slight chance of showers . * Min Temperature.................63-69. * 24 hr trend..................7 degrees cooler. * Max Humidity....................49-76 pct. * 24 hr trend..................7 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the evening becoming northwest 5 to 15 mph after midnight. * Winds...10000 FT MSL............Southwest 15 to 25 mph in the evening becoming northwest after midnight. * Chance of Precip................20 percent. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............10 percent. .TUESDAY... * Sky/weather.....................Sunny. * Max Temperature.................82-93. * 24 hr trend..................Little change. * Min Humidity....................20-33 pct. * 24 hr trend..................13 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. * Winds...10000 FT MSL............Northwest 25 to 35 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............3 percent. .EXTENDED... .WEDNESDAY...Clear. Lows 65-75. Highs 89-98. Northwest winds 5 to 10 mph. .THURSDAY...Clear. Lows 67-77. Highs 90-99. East winds 5 to 10 mph. .FRIDAY...Clear. Lows 70-78. Highs 91-100. Northeast winds 5 to 15 mph. .SATURDAY...Clear. Lows 72-78. Highs 91-101. .SUNDAY...Clear. Lows 72-79. Highs 93-102. $$ CAZ230-281115- Joshua Tree National Park- 408 PM PDT Sun Sep 27 2026 .TONIGHT... * Sky/weather.....................Mostly cloudy. Slight chance of showers after midnight. * Min Temperature.................58-71. * 24 hr trend..................6 degrees cooler. * Max Humidity....................61-77 pct. * 24 hr trend..................33 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Southwest 20 to 30 mph. * Chance of Precip................10 percent in the evening becoming 20 percent after midnight. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............5 percent. .MONDAY... * Sky/weather.....................Partly sunny. * Max Temperature.................72-85. * 24 hr trend..................5 degrees cooler. * Min Humidity....................30-40 pct. * 24 hr trend..................8 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Southwest 20 to 30 mph. * Chance of Precip................20 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............7 percent. .MONDAY NIGHT... * Sky/weather.....................Mostly clear. Slight chance of showers. * Min Temperature.................54-65. * 24 hr trend..................5 degrees cooler. * Max Humidity....................48-63 pct. * 24 hr trend..................13 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 10 to 20 mph. * Winds...10000 FT MSL............North 5 to 15 mph in the evening becoming 15 to 25 mph after midnight. * Chance of Precip................20 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............5 percent. .TUESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................73-84. * 24 hr trend..................Little change. * Min Humidity....................28-34 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 15 to 25 mph. * Winds...10000 FT MSL............North 30 to 40 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............3 percent. .EXTENDED... .WEDNESDAY...Clear. Lows 59-70. Highs 80-92. Northwest winds 10 to 20 mph. .THURSDAY...Clear. Lows 61-72. Highs 82-94. North winds 5 to 10 mph. .FRIDAY...Clear. Lows 62-72. Highs 81-94. East winds 5 to 15 mph. .SATURDAY...Clear. Lows 62-72. Highs 81-94. .SUNDAY...Clear. Lows 62-73. Highs 82-95. $$ .8 TO 10 DAY OUTLOOK...Monday October 5th through Wednesday October 7th: Above normal temperatures and near to above median precipitation.