Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
810 FNUS55 KPSR 172017 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 117 PM MST Fri Jul 17 2026 .DISCUSSION... Showers and thunderstorms will remain possible over the Arizona districts into this afternoon with much lower chances into western districts. Activity over south-central Arizona will still be capable of producing localized flooding through early afternoon before drying begins to move in from the south. Elevated southerly winds are anticipated much of the period for the western districts with light winds elsewhere. Elevated humidities today will keep minimum afternoon humidity levels from 30% in western districts to 40-50% over the eastern districts. A gradual drying trend over the weekend will drop MinRHs to 20-35%. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-180830- 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- 117 PM MST Fri Jul 17 2026 .TONIGHT... * Sky/weather.....................Partly cloudy. Slight chance of showers and thunderstorms after midnight. * Min Temperature.................75-85. * 24 hr trend..................Little change. * Max Humidity....................47-74 pct. * 24 hr trend..................13 pct drier. * Winds - 20 foot...Slope/Valley..Southeast 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...............8 percent. .SATURDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................94-104. * 24 hr trend..................4 degrees warmer. * Min Humidity....................23-37 pct. * 24 hr trend..................10 pct drier. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming south in the afternoon. * 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...............7 percent. * Mixing Height for Phoenix.......7700 ft AGL. * Transport Wind for Phoenix......West 8 knots. * Dispersion for Phoenix..........Good. .SATURDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................77-87. * 24 hr trend..................Little change. * Max Humidity....................43-67 pct. * 24 hr trend..................7 pct drier. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Light and variable in the evening becoming south 5 to 15 mph after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............3 percent. .SUNDAY... * Sky/weather.....................Partly sunny. * Max Temperature.................96-105. * 24 hr trend..................Little change. * Min Humidity....................23-34 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............South 5 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............5 percent. * Mixing Height for Phoenix.......10000 ft AGL. * Transport Wind for Phoenix......Southwest 6 knots. * Dispersion for Phoenix..........Good. .EXTENDED... .MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 78-88. Highs 97-105. South winds 5 to 15 mph. .TUESDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 78-88. Highs 97-105. South winds 5 to 15 mph. .WEDNESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 78-88. Highs 99-106. Southeast winds 5 to 10 mph. .THURSDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 80-90. Highs 102-109. .FRIDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 80-90. Highs 102-109. $$ AZZ131-CAZ231-180830- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 117 PM MST Fri Jul 17 2026 /117 PM PDT Fri Jul 17 2026/ .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................79-84. * 24 hr trend..................4 degrees cooler. * Max Humidity....................43-63 pct. * 24 hr trend..................12 pct drier. * Winds - 20 foot...Slope/Valley..South 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...............3 percent. .SATURDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................102-107. * 24 hr trend..................Little change. * Min Humidity....................21-27 pct. * 24 hr trend..................5 pct drier. * 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...............3 percent. * Mixing Height for Yuma..........10200 ft AGL. * Transport Wind for Yuma.........South 6 knots. * Dispersion for Yuma.............Good. .SATURDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................81-86. * 24 hr trend..................Little change. * Max Humidity....................39-51 pct. * 24 hr trend..................5 pct drier. * Winds - 20 foot...Slope/Valley..South 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...............1 percent. .SUNDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................103-108. * 24 hr trend..................Little change. * Min Humidity....................20-25 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 5 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. * Mixing Height for Yuma..........10800 ft AGL. * Transport Wind for Yuma.........South 7 knots. * Dispersion for Yuma.............Good. .EXTENDED... .MONDAY...Mostly clear. Lows 81-86. Highs 103-108. South winds 10 to 20 mph. .TUESDAY...Mostly clear. Lows 80-85. Highs 103-108. South winds 10 to 20 mph. .WEDNESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 81-88. Highs 104-109. South winds 5 to 15 mph. .THURSDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 83-88. Highs 106-111. .FRIDAY...Partly cloudy with slight chance of showers. Lows 83-88. Highs 106-111. $$ AZZ133-180830- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 117 PM MST Fri Jul 17 2026 .TONIGHT... * Sky/weather.....................Partly cloudy. Slight chance of showers and thunderstorms. * Min Temperature.................60-76. * 24 hr trend..................Little change. * Max Humidity....................66-90 pct. * 24 hr trend..................16 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the evening becoming mostly downslope/downvalley after midnight. * Winds...10000 FT MSL............Southwest 10 to 20 mph. * Chance of Precip................20 percent. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............16 percent. .SATURDAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms. * Max Temperature.................79-93. * 24 hr trend..................3 degrees warmer. * Min Humidity....................37-54 pct. * 24 hr trend..................8 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............West 10 to 20 mph. * Chance of Precip................30 percent. * CWR (>= 0.10 IN)................20 percent. * Chance of Thunder...............28 percent. .SATURDAY NIGHT... * Sky/weather.....................Partly cloudy. Slight chance of showers and thunderstorms. * Min Temperature.................61-78. * 24 hr trend..................Little change. * Max Humidity....................64-90 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the evening becoming mostly downslope/downvalley after midnight. * Winds...10000 FT MSL............Light and variable in the evening becoming west 5 to 15 mph after midnight. * Chance of Precip................10 percent. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............12 percent. .SUNDAY... * Sky/weather.....................Partly sunny. Slight chance of thunderstorms in the morning. chance of showers . chance of thunderstorms in the afternoon. * Max Temperature.................81-95. * 24 hr trend..................Little change. * Min Humidity....................36-53 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............West 5 to 15 mph in the morning becoming light and variable in the afternoon. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................20 percent. * Chance of Thunder...............42 percent. .EXTENDED... .MONDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 60-79. Highs 81-96. West winds 5 to 15 mph. .TUESDAY...Partly cloudy with chance of showers and thunderstorms. Lows 61-79. Highs 82-96. North winds 5 to 10 mph. .WEDNESDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 61-81. Highs 85-99. East winds 5 to 10 mph. .THURSDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 64-82. Highs 88-102. .FRIDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 64-82. Highs 88-102. $$ CAZ232-180830- Imperial County And Eastern Riverside County- 117 PM PDT Fri Jul 17 2026 .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................80-86. * 24 hr trend..................Little change. * Max Humidity....................40-54 pct. * 24 hr trend..................19 pct drier. * Winds - 20 foot...Slope/Valley..South 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...............5 percent. .SATURDAY... * Sky/weather.....................Sunny. * Max Temperature.................98-108. * 24 hr trend..................Little change. * Min Humidity....................20-27 pct. * 24 hr trend..................6 pct drier. * 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. .SATURDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................81-87. * 24 hr trend..................Little change. * Max Humidity....................34-49 pct. * 24 hr trend..................6 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 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...............1 percent. .SUNDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................99-109. * 24 hr trend..................Little change. * Min Humidity....................19-26 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 5 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. .EXTENDED... .MONDAY...Mostly clear. Lows 81-87. Highs 99-109. Southwest winds 10 to 20 mph. .TUESDAY...Mostly clear. Lows 81-87. Highs 99-109. South winds 5 to 15 mph. .WEDNESDAY...Mostly clear with slight chance of showers. Lows 81-89. Highs 100-110. South winds 5 to 15 mph. .THURSDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 84-89. Highs 102-112. .FRIDAY...Partly cloudy. Lows 83-89. Highs 101-112. $$ CAZ230-180830- Joshua Tree National Park- 117 PM PDT Fri Jul 17 2026 .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................69-82. * 24 hr trend..................Little change. * Max Humidity....................42-52 pct. * 24 hr trend..................15 pct drier. * Winds - 20 foot...Slope/Valley..South 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...............5 percent. .SATURDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................88-101. * 24 hr trend..................3 degrees warmer. * Min Humidity....................23-30 pct. * 24 hr trend..................7 pct drier. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming south 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...............5 percent. .SATURDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................71-84. * 24 hr trend..................Little change. * Max Humidity....................34-46 pct. * 24 hr trend..................7 pct drier. * 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. .SUNDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................89-103. * 24 hr trend..................Little change. * Min Humidity....................21-28 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the morning becoming south 5 to 15 mph 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...............1 percent. .EXTENDED... .MONDAY...Partly cloudy. Lows 70-84. Highs 88-103. Southwest winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 70-84. Highs 89-103. Southwest winds 10 to 20 mph. .WEDNESDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 71-86. Highs 90-103. South winds 5 to 15 mph. .THURSDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 73-86. Highs 91-104. .FRIDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 73-86. Highs 91-105. $$ .8 TO 10 DAY OUTLOOK...Saturday July 25th through Monday July 27th: Above normal temperatures and above median precipitation.