Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
888 FNUS55 KPSR 280903 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 203 AM MST Tue Jul 28 2026 .DISCUSSION... Typical monsoon conditions are expected through much of the forecast, 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 today. Above normal, temperatures will contribute to seasonally dry afternoon conditions each day through the first half of the week, before temperatures once again heat up during the second half of the week. Minimum RH values of 15-25% will be common through mid week before dropping into the 10-20% range late in the week as temperatures heat up again. Overnight recoveries will be fair most nights with RH values mostly in the 35-50% across lower deserts to 45-65% across southern Gila County. By Thursday MaxRHs will drop to between 20-30% across the lower deserts. 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. AZZ132-282115- 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- 203 AM MST Tue Jul 28 2026 .TODAY... * Sky/weather.....................Partly sunny. * Max Temperature.................104-110. * 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............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 Phoenix.......6100 ft AGL. * Transport Wind for Phoenix......West 10 knots. * Dispersion for Phoenix..........Good. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................82-92. * 24 hr trend..................Little change. * Max Humidity....................39-48 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 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...............3 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................106-113. * 24 hr trend..................Little change. * Min Humidity....................16-20 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Southwest 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.......10500 ft AGL. * Transport Wind for Phoenix......West 6 knots. * Dispersion for Phoenix..........Good. .EXTENDED... .THURSDAY...Mostly clear. Lows 84-94. Highs 109-115. 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 111-118. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .SUNDAY...Mostly clear. Lows 85-95. Highs 109-116. .MONDAY...Mostly clear. Lows 84-94. Highs 107-113. $$ AZZ131-CAZ231-282115- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 203 AM MST Tue Jul 28 2026 /203 AM PDT Tue Jul 28 2026/ .TODAY... * Sky/weather.....................Mostly sunny. Areas of smoke in the afternoon. * Max Temperature.................108-113. * 24 hr trend..................Little change. * Min Humidity....................19-23 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. * Mixing Height for Yuma..........8800 ft AGL. * Transport Wind for Yuma.........South 10 knots. * Dispersion for Yuma.............Very good. .TONIGHT... * Sky/weather.....................Mostly clear. Areas of smoke in the evening. * Min Temperature.................82-87. * 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. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................109-114. * 24 hr trend..................Little change. * Min Humidity....................15-19 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Light and variable in the morning becoming southwest 5 to 15 mph in the afternoon. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. * Mixing Height for Yuma..........9600 ft AGL. * Transport Wind for Yuma.........South 9 knots. * Dispersion for Yuma.............Very good. .EXTENDED... .THURSDAY...Mostly clear. Lows 83-88. Highs 111-116. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Mostly clear. Lows 85-90. 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 115-120. South winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .SUNDAY...Mostly clear. Lows 86-91. Highs 112-118. .MONDAY...Mostly clear. Lows 85-90. Highs 110-116. $$ AZZ133-282115- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 203 AM MST Tue Jul 28 2026 .TODAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms. * Max Temperature.................91-105. * 24 hr trend..................Little change. * Min Humidity....................22-32 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Northeast 10 to 20 mph in the morning becoming light and variable in the afternoon. * Chance of Precip................20 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............15 percent. .TONIGHT... * Sky/weather.....................Partly cloudy. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................67-84. * 24 hr trend..................Little change. * Max Humidity....................46-70 pct. * 24 hr trend..................Little change. * Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the evening becoming northeast after midnight. * Winds...10000 FT MSL............Southwest 5 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............8 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................93-107. * 24 hr trend..................Little change. * Min Humidity....................19-27 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Southwest 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. .EXTENDED... .THURSDAY...Mostly clear. Lows 68-87. Highs 96-111. Northwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 70-87. Highs 98-112. West winds 5 to 15 mph. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 69-87. Highs 98-113. South winds 5 to 15 mph. .SUNDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 69-87. Highs 95-110. .MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 67-87. Highs 94-108. $$ CAZ232-282115- Imperial County And Eastern Riverside County- 203 AM PDT Tue Jul 28 2026 .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................103-113. * 24 hr trend..................Little change. * Min Humidity....................14-22 pct. * 24 hr trend..................3 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...............1 percent. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................82-88. * 24 hr trend..................Little change. * Max Humidity....................25-51 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Southwest 5 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................104-114. * 24 hr trend..................Little change. * Min Humidity....................11-18 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..South 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. .EXTENDED... .THURSDAY...Mostly clear. Lows 82-90. Highs 106-116. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Mostly clear. Lows 84-92. 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 111-121. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .SUNDAY...Mostly clear. Lows 85-93. Highs 109-120. .MONDAY...Mostly clear. Lows 84-91. Highs 107-118. $$ CAZ230-282115- Joshua Tree National Park- 203 AM PDT Tue Jul 28 2026 .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................94-107. * 24 hr trend..................Little change. * Min Humidity....................13-17 pct. * 24 hr trend..................5 pct drier. * 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...............0 percent. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................72-84. * 24 hr trend..................Little change. * Max Humidity....................23-30 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 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...............0 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................94-108. * 24 hr trend..................Little change. * Min Humidity....................10-14 pct. * 24 hr trend..................3 pct drier. * 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...............0 percent. .EXTENDED... .THURSDAY...Mostly clear. Lows 73-86. Highs 97-110. West winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Mostly clear. Lows 75-89. Highs 99-113. West winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Mostly clear. Lows 78-90. Highs 102-116. West winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .SUNDAY...Mostly clear. Lows 78-90. Highs 101-114. .MONDAY...Clear. Lows 75-88. Highs 98-112. $$ .8 TO 10 DAY OUTLOOK...Wednesday August 5th through Friday August 7th: Above normal temperatures and above median precipitation.