Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
590 FNUS55 KPSR 131905 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 1205 PM MST Sun Sep 13 2026 .DISCUSSION... Chances for scattered showers and isolated storms will continue today before increasing and becoming more widespread into the south-central Arizona lower deserts beginning Monday. Moisture levels will remain high enough to support localized heavy rainfall with any storms. Minimum humidity levels over the next several days will only fall into a 15-25% range in western districts and 25-40% in eastern districts. This will follow fair to good overnight recovery of 40-70%. Outside of thunderstorms, winds will generally remain light with a south to southwest heading though nearly calm conditions will be common in the morning hours. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-140715- 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- 1205 PM MST Sun Sep 13 2026 .TONIGHT... * Sky/weather.....................Mostly clear. Slight chance of showers and thunderstorms after midnight. * Min Temperature.................78-88. * 24 hr trend..................Little change. * Max Humidity....................52-64 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 15 to 25 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............3 percent. .MONDAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms. * Max Temperature.................97-105. * 24 hr trend..................Little change. * Min Humidity....................24-31 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 15 to 25 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............7 percent. * Mixing Height for Phoenix.......11800 ft AGL. * Transport Wind for Phoenix......Southwest 12 knots. * Dispersion for Phoenix..........Excellent. .MONDAY NIGHT... * Sky/weather.....................Mostly clear. Slight chance of showers in the evening. slight chance of thunderstorms . chance of showers after midnight. * Min Temperature.................75-85. * 24 hr trend..................Little change. * Max Humidity....................51-65 pct. * 24 hr trend..................Little change. * Winds - 20 foot...Slope/Valley..Southeast 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...............7 percent. .TUESDAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms in the morning. * Max Temperature.................96-103. * 24 hr trend..................Little change. * Min Humidity....................23-32 pct. * 24 hr trend..................Little change. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............South 15 to 25 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. * Mixing Height for Phoenix.......11300 ft AGL. * Transport Wind for Phoenix......South 11 knots. * Dispersion for Phoenix..........Excellent. .EXTENDED... .WEDNESDAY...Mostly clear with chance of showers and slight chance of thunderstorms. Lows 73-83. Highs 95-103. Southeast winds 5 to 15 mph. .THURSDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 74-84. Highs 96-104. Southeast winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 75-85. Highs 99-106. Southeast winds 5 to 10 mph. .SATURDAY...Clear. Lows 76-86. Highs 100-107. .SUNDAY...Mostly clear. Lows 75-85. Highs 97-104. $$ AZZ131-CAZ231-140715- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 1205 PM MST Sun Sep 13 2026 /1205 PM PDT Sun Sep 13 2026/ .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................79-84. * 24 hr trend..................Little change. * Max Humidity....................51-67 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...............1 percent. .MONDAY... * Sky/weather.....................Sunny. * Max Temperature.................101-106. * 24 hr trend..................Little change. * Min Humidity....................23-29 pct. * 24 hr trend..................5 pct drier. * Winds - 20 foot...Slope/Valley..South 10 to 20 mph. * Winds...10000 FT MSL............Southwest 15 to 25 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. * Mixing Height for Yuma..........6800 ft AGL. * Transport Wind for Yuma.........South 12 knots. * Dispersion for Yuma.............Very good. .MONDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................77-82. * 24 hr trend..................Little change. * Max Humidity....................48-63 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..Southeast 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...............1 percent. .TUESDAY... * Sky/weather.....................Sunny. * Max Temperature.................100-105. * 24 hr trend..................Little change. * Min Humidity....................22-28 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southeast 10 to 20 mph. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. * Mixing Height for Yuma..........6000 ft AGL. * Transport Wind for Yuma.........South 13 knots. * Dispersion for Yuma.............Very good. .EXTENDED... .WEDNESDAY...Mostly clear. Lows 74-79. Highs 100-105. South winds 10 to 20 mph. .THURSDAY...Mostly clear. Lows 74-79. Highs 100-105. South winds 5 to 15 mph. .FRIDAY...Clear. Lows 75-80. Highs 102-107. Southwest winds 5 to 10 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Clear. Lows 75-81. Highs 103-108. .SUNDAY...Mostly clear. Lows 74-81. Highs 101-106. $$ AZZ133-140715- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 1205 PM MST Sun Sep 13 2026 .TONIGHT... * Sky/weather.....................Partly cloudy. Slight chance of showers and thunderstorms . * Min Temperature.................63-80. * 24 hr trend..................Little change. * Max Humidity....................62-87 pct. * 24 hr trend..................Little change. * Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the evening becoming southeast after midnight. * Winds...10000 FT MSL............Southwest 15 to 25 mph. * Chance of Precip................30 percent. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............25 percent. .MONDAY... * Sky/weather.....................Partly sunny. Slight chance of thunderstorms in the morning. chance of showers . chance of thunderstorms in the afternoon. * Max Temperature.................81-96. * 24 hr trend..................3 degrees cooler. * Min Humidity....................32-49 pct. * 24 hr trend..................5 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............Southwest 15 to 25 mph. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................30 percent. * Chance of Thunder...............41 percent. .MONDAY NIGHT... * Sky/weather.....................Partly cloudy. Chance of thunderstorms and slight chance of showers in the evening becoming chance of showers and slight chance of thunderstorms after midnight. * Min Temperature.................62-77. * 24 hr trend..................Little change. * Max Humidity....................62-90 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............Southwest 10 to 20 mph. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................30 percent. * Chance of Thunder...............40 percent. .TUESDAY... * Sky/weather.....................Partly sunny. Slight chance of thunderstorms in the morning. chance of showers . chance of thunderstorms in the afternoon. * Max Temperature.................80-95. * 24 hr trend..................Little change. * Min Humidity....................32-47 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............Southwest 10 to 20 mph. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............22 percent. .EXTENDED... .WEDNESDAY...Partly cloudy with chance of showers and thunderstorms. Lows 60-76. Highs 79-94. Southeast winds 5 to 15 mph. .THURSDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 59-76. Highs 79-95. East winds 5 to 15 mph. .FRIDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 59-76. Highs 81-98. East winds 5 to 15 mph. .SATURDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 58-76. Highs 82-99. .SUNDAY...Mostly clear. Lows 58-76. Highs 80-96. $$ CAZ232-140715- Imperial County And Eastern Riverside County- 1205 PM PDT Sun Sep 13 2026 .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................76-82. * 24 hr trend..................Little change. * Max Humidity....................27-59 pct. * 24 hr trend..................15 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...............0 percent. .MONDAY... * Sky/weather.....................Sunny. * Max Temperature.................96-106. * 24 hr trend..................Little change. * Min Humidity....................10-23 pct. * 24 hr trend..................8 pct drier. * 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. .MONDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................74-80. * 24 hr trend..................Little change. * Max Humidity....................29-58 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. .TUESDAY... * Sky/weather.....................Sunny. * Max Temperature.................94-104. * 24 hr trend..................Little change. * Min Humidity....................13-23 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 15 to 25 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .EXTENDED... .WEDNESDAY...Mostly clear. Lows 72-78. Highs 94-104. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .THURSDAY...Mostly clear. Lows 72-79. Highs 95-104. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Clear. Lows 73-80. Highs 97-106. West winds 5 to 10 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Clear. Lows 74-80. Highs 98-107. .SUNDAY...Mostly clear. Lows 73-80. Highs 96-105. $$ CAZ230-140715- Joshua Tree National Park- 1205 PM PDT Sun Sep 13 2026 .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................66-77. * 24 hr trend..................Little change. * Max Humidity....................33-41 pct. * 24 hr trend..................20 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...............0 percent. .MONDAY... * Sky/weather.....................Sunny. * Max Temperature.................85-99. * 24 hr trend..................Little change. * Min Humidity....................13-18 pct. * 24 hr trend..................7 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the morning becoming south in the afternoon. * 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. .MONDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................65-75. * 24 hr trend..................Little change. * Max Humidity....................26-39 pct. * 24 hr trend..................5 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...............0 percent. .TUESDAY... * Sky/weather.....................Sunny. * Max Temperature.................82-97. * 24 hr trend..................3 degrees cooler. * Min Humidity....................13-19 pct. * 24 hr trend..................Little 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. .EXTENDED... .WEDNESDAY...Mostly clear. Lows 63-73. Highs 81-96. Southwest winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .THURSDAY...Mostly clear. Lows 63-73. Highs 83-97. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Clear. Lows 64-74. Highs 85-99. West winds 5 to 10 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Clear. Lows 66-75. Highs 86-100. .SUNDAY...Mostly clear. Lows 65-75. Highs 84-98. $$ .8 TO 10 DAY OUTLOOK...Monday September 21st through Wednesday September 23rd: Above normal temperatures and near to above median precipitation.