Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
683 FNUS55 KPSR 160732 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 1232 AM MST Sun Aug 16 2026 .DISCUSSION... Dry conditions and near normal temperatures will prevail today before temperatures rise to above normal by Monday. Little to no monsoon activity is expected through the start of the work week, with only a few isolated storms across the far eastern districts. Afternoon MinRHs will range between 15-20% across the lower deserts and between 20-25% across the far eastern districts. Expect overall light winds generally following typical diurnal patterns. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-161945- 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- 1232 AM MST Sun Aug 16 2026 .TODAY... * Sky/weather.....................Partly sunny. * Max Temperature.................102-109. * 24 hr trend..................3 degrees warmer. * Min Humidity....................17-21 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the morning becoming west 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...............3 percent. * Mixing Height for Phoenix.......8000 ft AGL. * Transport Wind for Phoenix......Northwest 8 knots. * Dispersion for Phoenix..........Good. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................81-91. * 24 hr trend..................Little change. * Max Humidity....................34-41 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Light and variable in the evening becoming southeast 5 to 15 mph after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............3 percent. .MONDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................105-111. * 24 hr trend..................3 degrees warmer. * Min Humidity....................15-19 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Northeast 5 to 10 mph in the morning becoming west 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...............0 percent. * Mixing Height for Phoenix.......12600 ft AGL. * Transport Wind for Phoenix......West 4 knots. * Dispersion for Phoenix..........Fair. .EXTENDED... .TUESDAY...Mostly clear. Lows 83-93. Highs 106-112. South winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 83-93. Highs 105-111. Southwest winds 5 to 15 mph. .THURSDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 83-93. Highs 106-112. Southwest winds 5 to 10 mph. .FRIDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 83-93. Highs 106-112. .SATURDAY...Partly cloudy. Lows 83-93. Highs 105-111. $$ AZZ131-CAZ231-161945- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 1232 AM MST Sun Aug 16 2026 /1232 AM PDT Sun Aug 16 2026/ .TODAY... * Sky/weather.....................Partly sunny. * Max Temperature.................105-110. * 24 hr trend..................3 degrees warmer. * Min Humidity....................18-23 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning becoming south in the afternoon. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. * Mixing Height for Yuma..........11300 ft AGL. * Transport Wind for Yuma.........South 7 knots. * Dispersion for Yuma.............Very good. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................83-88. * 24 hr trend..................Little change. * Max Humidity....................34-46 pct. * 24 hr trend..................5 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Southeast 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. .MONDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................107-112. * 24 hr trend..................Little change. * Min Humidity....................16-20 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning becoming southwest in the afternoon. * 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..........13800 ft AGL. * Transport Wind for Yuma.........South 7 knots. * Dispersion for Yuma.............Very good. .EXTENDED... .TUESDAY...Mostly clear. Lows 83-88. Highs 108-113. South winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 83-88. Highs 107-112. South winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 84-89. Highs 108-113. South winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 84-89. Highs 109-114. .SATURDAY...Mostly clear. Lows 83-88. Highs 108-113. $$ AZZ133-161945- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 1232 AM MST Sun Aug 16 2026 .TODAY... * Sky/weather.....................Partly sunny. * Max Temperature.................89-104. * 24 hr trend..................3 degrees warmer. * Min Humidity....................15-23 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..Northeast 5 to 10 mph in the morning becoming west in the afternoon. * Winds...10000 FT MSL............Light and variable. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................66-82. * 24 hr trend..................Little change. * Max Humidity....................36-56 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the evening becoming east after midnight. * Winds...10000 FT MSL............Light and variable. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. .MONDAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................90-106. * 24 hr trend..................Little change. * Min Humidity....................15-24 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..East 5 to 10 mph in the morning becoming south in the afternoon. * Winds...10000 FT MSL............Light and variable. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............5 percent. .EXTENDED... .TUESDAY...Mostly clear. Lows 66-84. Highs 91-107. East winds 5 to 15 mph. .WEDNESDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 67-85. Highs 92-107. Northwest winds 5 to 15 mph. .THURSDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 67-85. Highs 93-107. Northwest winds 5 to 15 mph. .FRIDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 66-84. Highs 93-107. .SATURDAY...Partly cloudy with chance of showers and thunderstorms. Lows 66-83. Highs 92-107. $$ CAZ232-161945- Imperial County And Eastern Riverside County- 1232 AM PDT Sun Aug 16 2026 .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................100-109. * 24 hr trend..................3 degrees warmer. * Min Humidity....................17-24 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning becoming southeast in the afternoon. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............3 percent. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................83-89. * 24 hr trend..................Little change. * Max Humidity....................30-43 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Light and variable in the evening becoming southeast 5 to 15 mph after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. .MONDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................102-111. * 24 hr trend..................Little change. * Min Humidity....................15-21 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the morning becoming south in the afternoon. * 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. .EXTENDED... .TUESDAY...Mostly clear. Lows 83-89. Highs 103-113. Southwest winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 83-90. Highs 102-112. South winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 84-90. Highs 103-113. South winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 84-90. Highs 104-113. .SATURDAY...Mostly clear. Lows 83-89. Highs 103-113. $$ CAZ230-161945- Joshua Tree National Park- 1232 AM PDT Sun Aug 16 2026 .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................89-103. * 24 hr trend..................Little change. * Min Humidity....................20-27 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning becoming south in the afternoon. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................72-84. * 24 hr trend..................Little change. * Max Humidity....................34-46 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the evening becoming northwest after midnight. * 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...............2 percent. .MONDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................91-105. * 24 hr trend..................Little change. * Min Humidity....................17-23 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning becoming south 5 to 15 mph in the afternoon. * 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. .EXTENDED... .TUESDAY...Mostly clear. Lows 72-86. Highs 93-107. Southwest winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 73-86. Highs 93-107. Southwest winds 10 to 20 mph. .THURSDAY...Mostly clear. Lows 74-86. Highs 93-107. Southwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 73-86. Highs 94-107. .SATURDAY...Mostly clear. Lows 73-85. Highs 93-107. $$ .8 TO 10 DAY OUTLOOK...Sunday August 23rd through Tuesday August 25th: Above normal temperatures and near to above median precipitation.