Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
397 FNUS55 KPSR 270759 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 1259 AM MST Mon Jul 27 2026 .DISCUSSION... Typical monsoon conditions are expected through at least the start of the workweek, with thunderstorm activity mainly favoring the high terrain of northern AZ and southeastern AZ and low chances (10%) in the lower deserts of south-central AZ. Above normal temperatures will contribute to seasonally dry afternoon conditions each day through the first half of the week. Minimum RH values of 15-30% will be common, with fair overnight recoveries most nights - maximum RH values mostly in the 35-50% across lower deserts to 45-65% across southern Gila County. Outside of thunderstorm outflows, wind speeds should be fairly light through the period with only local afternoon gusts 20-25 mph. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-272000- 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- 1259 AM MST Mon Jul 27 2026 .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................105-112. * 24 hr trend..................Little change. * Min Humidity....................20-24 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southwest 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...............2 percent. * Mixing Height for Phoenix.......10400 ft AGL. * Transport Wind for Phoenix......West 12 knots. * Dispersion for Phoenix..........Excellent. .TONIGHT... * Sky/weather.....................Partly cloudy. * Min Temperature.................83-93. * 24 hr trend..................Little change. * Max Humidity....................39-50 pct. * 24 hr trend..................Little RH change. * 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...............4 percent. .TUESDAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms in the morning. * Max Temperature.................104-111. * 24 hr trend..................Little change. * Min Humidity....................19-23 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southwest 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...............6 percent. * Mixing Height for Phoenix.......8700 ft AGL. * Transport Wind for Phoenix......West 11 knots. * Dispersion for Phoenix..........Very good. .EXTENDED... .WEDNESDAY...Mostly clear. Lows 82-92. Highs 106-112. Southwest winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 84-94. Highs 108-114. Southwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 85-95. Highs 110-116. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Mostly clear. Lows 85-95. Highs 110-116. .SUNDAY...Mostly clear. Lows 85-95. Highs 108-114. $$ AZZ131-CAZ231-272000- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 1259 AM MST Mon Jul 27 2026 /1259 AM PDT Mon Jul 27 2026/ .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................108-113. * 24 hr trend..................Little change. * Min Humidity....................20-24 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. * Mixing Height for Yuma..........7500 ft AGL. * Transport Wind for Yuma.........South 12 knots. * Dispersion for Yuma.............Very good. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................83-88. * 24 hr trend..................Little change. * Max Humidity....................39-51 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..South 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...............1 percent. .TUESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................108-113. * 24 hr trend..................Little change. * Min Humidity....................18-23 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 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...............0 percent. * Mixing Height for Yuma..........7100 ft AGL. * Transport Wind for Yuma.........South 10 knots. * Dispersion for Yuma.............Good. .EXTENDED... .WEDNESDAY...Mostly clear. Lows 83-88. Highs 109-114. South winds 10 to 20 mph. .THURSDAY...Mostly clear. Lows 84-89. Highs 111-116. South winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 86-91. Highs 113-118. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Mostly clear. Lows 86-91. Highs 113-119. .SUNDAY...Mostly clear. Lows 86-91. Highs 111-117. $$ AZZ133-272000- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 1259 AM MST Mon Jul 27 2026 .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................91-106. * 24 hr trend..................Little change. * Min Humidity....................21-32 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Light and variable in the morning becoming northwest 5 to 15 mph in the afternoon. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............8 percent. .TONIGHT... * Sky/weather.....................Partly cloudy. * Min Temperature.................67-85. * 24 hr trend..................Little change. * Max Humidity....................46-73 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Northwest 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............7 percent. .TUESDAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms. * Max Temperature.................91-106. * 24 hr trend..................Little change. * Min Humidity....................21-32 pct. * 24 hr trend..................Little change. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Northeast 5 to 15 mph in the morning becoming light and variable in the afternoon. * Chance of Precip................10 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............11 percent. .EXTENDED... .WEDNESDAY...Partly cloudy. Lows 67-86. Highs 93-107. West winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 68-86. Highs 95-110. West winds 5 to 15 mph. .FRIDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 69-87. Highs 98-112. West winds 5 to 15 mph. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 69-87. Highs 96-111. .SUNDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 68-86. Highs 94-109. $$ CAZ232-272000- Imperial County And Eastern Riverside County- 1259 AM PDT Mon Jul 27 2026 .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................104-115. * 24 hr trend..................5 degrees warmer. * Min Humidity....................18-24 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................83-89. * 24 hr trend..................Little change. * Max Humidity....................29-52 pct. * 24 hr trend..................8 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 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. .TUESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................104-114. * 24 hr trend..................Little change. * Min Humidity....................14-22 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..South 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...............0 percent. .EXTENDED... .WEDNESDAY...Mostly clear. Lows 82-88. Highs 104-114. Southwest winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 83-90. Highs 106-116. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Mostly clear. Lows 84-93. Highs 108-118. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Mostly clear. Lows 86-93. Highs 109-120. .SUNDAY...Mostly clear. Lows 86-92. Highs 108-118. $$ CAZ230-272000- Joshua Tree National Park- 1259 AM PDT Mon Jul 27 2026 .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................95-108. * 24 hr trend..................Little change. * Min Humidity....................18-24 pct. * 24 hr trend..................Little change. * 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...............2 percent. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................73-86. * 24 hr trend..................Little change. * Max Humidity....................28-35 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 southeast 5 to 15 mph after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. .TUESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................94-108. * 24 hr trend..................Little change. * Min Humidity....................14-18 pct. * 24 hr trend..................5 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .EXTENDED... .WEDNESDAY...Mostly clear. Lows 72-85. Highs 94-108. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .THURSDAY...Mostly clear. Lows 73-87. Highs 97-111. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Mostly clear. Lows 75-89. Highs 100-114. West winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Mostly clear. Lows 79-90. Highs 101-115. .SUNDAY...Mostly clear. Lows 78-90. Highs 99-113. $$ .8 TO 10 DAY OUTLOOK...Monday August 3rd through Wednesday August 5th: Above normal temperatures and near median precipitation.