


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Las Vegas, NV
Issued by NWS Las Vegas, NV
583 FNUS55 KVEF 020959 FWFVEF Fire Weather Planning Forecast for Southern Nevada Northwest Arizona and Southeast California National Weather Service Las Vegas NV 259 AM PDT Tue Sep 2 2025 .DISCUSSION...An increase of monsoonal moisture will bring afternoon relative humidities up to 20-30 percent across our southern zones, including San Bernardino County, southern Clark County, and Mohave County, where best chances of wetting rains from showers and thunderstorms exist today. The southern Great Basin will continue to experience afternoon RH in the lower teens today, before moisture expands on Wednesday. Moisture begins to decrease northwest-to-southeast late-week, as chances of wetting rains decrease across the area. Note: Thunderstorms imply gusty and erratic winds. Note: Please see operating plan for detailed zone descriptions at: http://www.wrh.noaa.gov/vef/fire.php AZZ101-CAZ229-NVZ466-022315- Lake Mead NRA/Colorado River-AZ side-Lower Colorado River Valley- Lake Mead NRA/Colorado River-NV side- 259 AM PDT Tue Sep 2 2025 /259 AM MST Tue Sep 2 2025/ .TODAY... * Sky/Weather.........Partly cloudy. Isolated showers and thunderstorms. * Chance of thunder...20 percent. * Max temperature: * Valley floor....102-107. * 24 hr trend.....On average down 6 degrees. * Min humidity: * Valley floor....17-27 percent. * 24 hr trend.....On average up 8 percent. * Wind (Slope/valley=20 ft, 10 min avg): * Valley floor....South wind 5 to 10 mph. * 10000 ft msl....East 10 to 15 mph. * CWR (>= 0.10 in)....15 percent. * Mixing height.......8300 ft agl. * Transport winds.....South around 10 knots. * Ventilation.........Very good. .TONIGHT... * Sky/Weather.........Mostly cloudy. Isolated showers and thunderstorms. * Chance of thunder...20 percent. * Min temperature: * Valley floor....76-81. * 24 hr trend.....On average down 4 degrees. * Max humidity: * Valley floor....47-52 percent. * 24 hr trend.....On average up 14 percent. * Wind (Slope/valley=20 ft, 10 min avg): * Valley floor....Southeast wind 5 to 10 mph. * 10000 ft msl....Southeast 15 to 20 mph. * CWR (>= 0.10 in)....20 percent. .WEDNESDAY... * Sky/Weather.........Partly cloudy. Scattered showers and isolated thunderstorms. * Chance of thunder...20 percent. * Max temperature: * Valley floor....98-103. * 24 hr trend.....On average down 4 degrees. * Min humidity: * Valley floor....22-32 percent. * 24 hr trend.....On average up 5 percent. * Wind (Slope/valley=20 ft, 10 min avg): * Valley floor....South wind 5 to 10 mph. Gusts up to 20 mph. * 10000 ft msl....Southeast 20 to 30 mph. * CWR (>= 0.10 in)....10 percent. * Mixing height.......6800 ft agl. * Transport winds.....North around 10 knots. * Ventilation.........Fair. .EXTENDED... .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the upper 70s to lower 80s. Highs 98 to 103. South wind 5 to 10 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the mid 70s to lower 80s. Highs 95 to 100. South wind around 10 mph. .SATURDAY...Mostly cloudy. Isolated showers and thunderstorms. Lows in the mid to upper 70s. Highs 95 to 100. South wind around 10 mph. $$ AZZ102-022315- Northwest Deserts/Northwest Plateau- 259 AM MST Tue Sep 2 2025 .TODAY... * Sky/Weather.........Partly cloudy. Scattered showers and thunderstorms. * Chance of thunder...40 percent. * Max temperature: * 3000 feet.......98-103. * 6000 feet.......85-90. * 24 hr trend.....On average down 4 degrees. * Min humidity: * 3000 feet.......16-26 percent. * 6000 feet.......14-24 percent. * 24 hr trend.....On average up 4 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....South winds 5 to 10 mph. * Upper slopes....South winds 5 to 10 mph with gusts to around 20 mph. * 10000 ft msl....East 10 to 15 mph. * CWR (>= 0.10 in)....5 percent increasing to 45 percent in the afternoon. * Mixing height.......10300 ft agl. * Transport winds.....South around 10 knots. * Ventilation.........Very good. .TONIGHT... * Sky/Weather.........Mostly cloudy. Isolated showers and thunderstorms. * Chance of thunder...20 percent. * Min temperature: * 3000 feet.......69-74. * 6000 feet.......54-59. * 24 hr trend.....Little change. * Max humidity: * 3000 feet.......50-55 percent. * 6000 feet.......58-63 percent. * 24 hr trend.....On average up 16 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....East winds 5 to 10 mph. * Upper slopes....Southwest winds 5 to 10 mph shifting to the south after midnight. * 10000 ft msl....Southeast 10 to 20 mph. * CWR (>= 0.10 in)....10 percent. .WEDNESDAY... * Sky/Weather.........Partly cloudy. Scattered showers and thunderstorms. * Chance of thunder...50 percent. * Max temperature: * 3000 feet.......94-99. * 6000 feet.......78-83. * 24 hr trend.....On average down 4 degrees. * Min humidity: * 3000 feet.......23-32 percent. * 6000 feet.......27-37 percent. * 24 hr trend.....On average up 9 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....Southeast winds 5 to 10 mph in the morning becoming upslope/upvalley 4 to 8 mph. Gusts up to 20 mph. * Upper slopes....Upslope/upvalley 4 to 8 mph. * 10000 ft msl....Southeast 15 to 25 mph. * CWR (>= 0.10 in)....40 percent. * Mixing height.......3300 ft agl. * Transport winds.....Light winds. * Ventilation.........Marginal. .EXTENDED... .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows in the mid 60s to lower 70s. Highs in the mid 80s to lower 90s. Southwest winds 5 to 10 mph. .FRIDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows in the 60s. Highs in the 80s. Southwest winds 5 to 10 mph. .SATURDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the lower to mid 60s. Highs in the lower to mid 80s. Southwest winds 5 to 10 mph. $$ NVZ465-022315- Clark and SW Lincoln County Deserts/Las Vegas Dispatch- 259 AM PDT Tue Sep 2 2025 .TODAY... * Sky/Weather.........Partly cloudy. Isolated showers and thunderstorms. * Chance of thunder...20 percent. * Max temperature: * 4000 feet.......98-103. * 24 hr trend.....On average down 4 degrees. * Min humidity: * 4000 feet.......14-24 percent. * 24 hr trend.....On average up 7 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....Upslope/upvalley 4 to 8 mph becoming south up to 10 mph in the afternoon. Gusts up to 25 mph. * 10000 ft msl....East around 10 mph. * CWR (>= 0.10 in)....15 percent. * Mixing height.......10900 ft agl. * Transport winds.....Light winds. * Ventilation.........Good. .TONIGHT... * Sky/Weather.........Mostly cloudy. Isolated showers and thunderstorms. * Chance of thunder...20 percent. * Min temperature: * 4000 feet.......70-75. * 24 hr trend.....On average down 4 degrees. * Max humidity: * 4000 feet.......42-47 percent. * 24 hr trend.....On average up 15 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....West winds 5 to 10 mph. * 10000 ft msl....East around 10 mph. * CWR (>= 0.10 in)....15 percent. .WEDNESDAY... * Sky/Weather.........Partly cloudy. Scattered showers and isolated thunderstorms. * Chance of thunder...20 percent. * Max temperature: * 4000 feet.......93-98. * 24 hr trend.....On average down 5 degrees. * Min humidity: * 4000 feet.......21-31 percent. * 24 hr trend.....On average up 7 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....South winds 5 to 10 mph. * 10000 ft msl....Southeast 15 to 25 mph. * CWR (>= 0.10 in)....0 percent. * Mixing height.......3600 ft agl. * Transport winds.....Northwest around 10 knots. * Ventilation.........Fair. .EXTENDED... .THURSDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the upper 60s to lower 70s. Highs in the upper 80s to lower 90s. Light wind. .FRIDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows in the mid 60s to lower 70s. Highs in the mid 80s to lower 90s. South winds 5 to 10 mph. .SATURDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the 60s. Highs in the mid to upper 80s. South winds up to 10 mph. $$ NVZ463-464-022315- Sheep Range-Spring Mountains- 259 AM PDT Tue Sep 2 2025 .TODAY... * Sky/Weather.........Partly cloudy then becoming mostly cloudy. Isolated showers and thunderstorms. * Chance of thunder...20 percent. * Max temperature: * 7000 feet.......82-87. * 24 hr trend.....On average down 4 degrees. * Min humidity: * 7000 feet.......20-29 percent. * 24 hr trend.....On average up 6 percent. * Wind (slope/valley=20 ft, 10 min avg): * Upper slopes....Upslope/upvalley 4 to 8 mph. Gusts up to 20 mph. * 10000 ft msl....East around 10 mph. * CWR (>= 0.10 in)....15 percent. * Mixing height.......15300 ft agl. * Transport winds.....East around 10 knots. * Ventilation.........Excellent. .TONIGHT... * Sky/Weather.........Mostly cloudy. Isolated showers and thunderstorms. * Chance of thunder...20 percent. * Min temperature: * 7000 feet.......51-56. * 24 hr trend.....On average down 4 degrees. * Max humidity: * 7000 feet.......54-59 percent. * 24 hr trend.....On average up 17 percent. * Wind (slope/valley=20 ft, 10 min avg): * Upper slopes....Downslope/downvalley 2 to 5 mph. Gusts up to 20 mph. * 10000 ft msl....East 10 mph. * CWR (>= 0.10 in)....20 percent. .WEDNESDAY... * Sky/Weather.........Partly cloudy then becoming mostly cloudy. Scattered showers and isolated thunderstorms. * Chance of thunder...20 percent. * Max temperature: * 7000 feet.......76-81. * 24 hr trend.....On average down 6 degrees. * Min humidity: * 7000 feet.......32-42 percent. * 24 hr trend.....On average up 12 percent. * Wind (slope/valley=20 ft, 10 min avg): * Upper slopes....Southeast winds 10 mph. * 10000 ft msl....Southeast 15 to 20 mph. * CWR (>= 0.10 in)....10 percent. * Mixing height.......5700 ft agl. * Transport winds.....Southeast 10 to 15 knots. * Ventilation.........Very good. .EXTENDED... .THURSDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the upper 40s to mid 50s. Highs in the lower to mid 70s. Southwest winds 10 mph. .FRIDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows in the upper 40s to lower 50s. Highs in the lower to mid 70s. South winds 10 mph. .SATURDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the upper 40s to lower 50s. Highs in the upper 60s to mid 70s. South winds 10 mph. $$ NVZ461-022315- Lincoln County/Ely Dispatch- 259 AM PDT Tue Sep 2 2025 .TODAY... * Sky/Weather.........Partly cloudy. * Chance of thunder...0 percent. * Max temperature: * 4000 feet.......97-102. * 7000 feet.......85-90. * 24 hr trend.....Little change. * Min humidity: * 4000 feet.......14-17 percent. * 7000 feet.......12-17 percent. * 24 hr trend.....Little change. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....Upslope/upvalley 4 to 8 mph becoming southwest up to 10 mph in the afternoon. Gusts up to 25 mph. * Upper slopes....Upslope/upvalley 4 to 8 mph becoming south up to 10 mph in the afternoon. Gusts up to 20 mph. * 10000 ft msl....Southeast around 10 mph. * CWR (>= 0.10 in)....0 percent. * Mixing height.......14900 ft agl. * Transport winds.....Southeast around 10 knots. * Ventilation.........Excellent. .TONIGHT... * Sky/Weather.........Mostly cloudy. * Chance of thunder...0 percent. * Min temperature: * 4000 feet.......66-71. * 7000 feet.......59-64. * 24 hr trend.....On average up 2 degrees. * Max humidity: * 4000 feet.......43-48 percent. * 7000 feet.......40-45 percent. * 24 hr trend.....On average up 12 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....West wind 5 to 10 mph in the evening becoming downslope/downvalley 2 to 5 mph. * Upper slopes....Northwest wind 5 to 10 mph. * 10000 ft msl....Southeast 5 to 10 mph. * CWR (>= 0.10 in)....0 percent. .WEDNESDAY... * Sky/Weather.........Partly cloudy. Scattered showers and isolated thunderstorms. * Chance of thunder...20 percent. * Max temperature: * 4000 feet.......91-96. * 7000 feet.......81-86. * 24 hr trend.....On average down 7 degrees. * Min humidity: * 4000 feet.......22-27 percent. * 7000 feet.......16-26 percent. * 24 hr trend.....On average up 7 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....Upslope/upvalley 4 to 8 mph becoming south up to 10 mph in the afternoon. Gusts up to 20 mph. * Upper slopes....South wind 5 to 10 mph. * 10000 ft msl....Southeast 10 to 15 mph. * CWR (>= 0.10 in)....5 percent increasing to 15 percent in the afternoon. * Mixing height.......4200 ft agl. * Transport winds.....Southeast around 10 knots. * Ventilation.........Very good. .EXTENDED... .THURSDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the upper 50s to lower 60s. Highs in the upper 80s to mid 90s. South wind 5 to 10 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the mid 50s to lower 60s. Highs in the upper 80s to lower 90s. Southwest wind 5 to 10 mph. .SATURDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows in the mid to upper 50s. Highs in the mid 80s to lower 90s. South wind 5 to 10 mph. $$ NVZ462-022315- Nye County Deserts/Las Vegas Dispatch- 259 AM PDT Tue Sep 2 2025 .TODAY... * Sky/Weather.........Partly cloudy then becoming mostly cloudy. Isolated showers and thunderstorms. * Chance of thunder...20 percent. * Max temperature: * 4000 feet.......95-100. * 7000 feet.......82-87. * 24 hr trend.....On average down 5 degrees. * Min humidity: * 4000 feet.......15-20 percent. * 7000 feet.......15-21 percent. * 24 hr trend.....On average up 6 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....East wind 5 to 10 mph shifting to the south around 10 mph in the afternoon. Gusts up to 30 mph. * Upper slopes....South wind 5 to 10 mph with gusts to around 25 mph. * 10000 ft msl....Southeast 10 to 15 mph. * CWR (>= 0.10 in)....5 percent. * Mixing height.......13600 ft agl. * Transport winds.....Southeast around 10 knots. * Ventilation.........Excellent. .TONIGHT... * Sky/Weather.........Mostly cloudy. Isolated showers and thunderstorms. * Chance of thunder...20 percent. * Min temperature: * 4000 feet.......67-72. * 7000 feet.......59-64. * 24 hr trend.....Little change. * Max humidity: * 4000 feet.......42-47 percent. * 7000 feet.......45-50 percent. * 24 hr trend.....On average up 16 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....West wind 5 to 10 mph shifting to the north after midnight. * Upper slopes....West wind 5 to 10 mph shifting to the north after midnight. * 10000 ft msl....Northwest around 10 mph. * CWR (>= 0.10 in)....0 percent. .WEDNESDAY... * Sky/Weather.........Partly cloudy. Scattered showers and isolated thunderstorms. * Chance of thunder...20 percent. * Max temperature: * 4000 feet.......90-95. * 7000 feet.......77-82. * 24 hr trend.....On average down 5 degrees. * Min humidity: * 4000 feet.......22-30 percent. * 7000 feet.......23-32 percent. * 24 hr trend.....On average up 7 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....Upslope/upvalley 4 to 8 mph. Gusts up to 25 mph. * Upper slopes....Northwest wind 5 to 10 mph in the morning becoming upslope/upvalley 4 to 8 mph. Gusts up to 25 mph. * 10000 ft msl....Northeast 10 to 15 mph. * CWR (>= 0.10 in)....5 percent. * Mixing height.......6700 ft agl. * Transport winds.....East around 10 knots. * Ventilation.........Very good. .EXTENDED... .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the mid 50s to lower 60s. Highs in the upper 80s to lower 90s. South wind 5 to 10 mph. .FRIDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows in the mid 50s to lower 60s. Highs in the upper 80s to mid 90s. South wind 5 to 10 mph. .SATURDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the mid to upper 50s. Highs in the upper 80s to lower 90s. South wind around 10 mph. $$ NVZ460-022315- Esmeralda and Nye County Deserts/CNC Dispatch- 259 AM PDT Tue Sep 2 2025 .TODAY... * Sky/Weather.........Partly cloudy. Isolated showers and thunderstorms. * Chance of thunder...20 percent. * Max temperature: * 4000 feet.......93-95. * 7000 feet.......82-87. * 24 hr trend.....On average down 3 degrees. * Min humidity: * 4000 feet.......15-17 percent. * 7000 feet.......13-21 percent. * 24 hr trend.....On average up 2 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....Upslope/upvalley 4 to 8 mph becoming south around 10 mph in the afternoon. Gusts up to 25 mph. * Upper slopes....Upslope/upvalley 4 to 8 mph becoming south 10 to 15 mph with gusts to around 25 mph in the afternoon. * 10000 ft msl....South 10 to 20 mph. * CWR (>= 0.10 in)....0 percent. * Mixing height.......12000 ft agl. * Transport winds.....South 10 to 15 knots. * Ventilation.........Excellent. .TONIGHT... * Sky/Weather.........Mostly cloudy. Isolated showers and thunderstorms in the evening. * Chance of thunder...20 percent. * Min temperature: * 4000 feet.......63-68. * 7000 feet.......56-61. * 24 hr trend.....Little change. * Max humidity: * 4000 feet.......40-45 percent. * 7000 feet.......45-50 percent. * 24 hr trend.....On average up 17 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....West wind 5 to 10 mph in the evening becoming downslope/downvalley 2 to 5 mph. * Upper slopes....West wind 5 to 10 mph in the evening becoming downslope/downvalley 2 to 5 mph. * 10000 ft msl....Southwest 5 to 10 mph. * CWR (>= 0.10 in)....0 percent. .WEDNESDAY... * Sky/Weather.........Partly cloudy. Isolated showers and thunderstorms. * Chance of thunder...20 percent. * Max temperature: * 4000 feet.......Around 90. * 7000 feet.......78-83. * 24 hr trend.....On average down 4 degrees. * Min humidity: * 4000 feet.......22-25 percent. * 7000 feet.......21-31 percent. * 24 hr trend.....On average up 8 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....Upslope/upvalley 4 to 8 mph becoming southeast up to 10 mph in the afternoon. Gusts up to 25 mph. * Upper slopes....Upslope/upvalley 4 to 8 mph becoming southeast up to 10 mph in the afternoon. * 10000 ft msl....East 5 to 10 mph. * CWR (>= 0.10 in)....5 percent. * Mixing height.......5300 ft agl. * Transport winds.....Light winds. * Ventilation.........Fair. .EXTENDED... .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the upper 50s to lower 60s. Highs in the mid 80s to lower 90s. Light wind. .FRIDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows in the mid 50s to lower 60s. Highs in the mid 80s to lower 90s. South wind 5 to 10 mph. .SATURDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows in the 50s. Highs in the mid to upper 80s. South wind 5 to 10 mph. $$ CAZ226-022315- Owens Valley/Southern Inyo Forest- 259 AM PDT Tue Sep 2 2025 .TODAY... * Sky/Weather.........Partly cloudy. Scattered showers and isolated thunderstorms. * Chance of thunder...20 percent. * Max temperature: * Valley floor....93-98. * 7000 feet.......78-83. * 24 hr trend.....On average down 6 degrees. * Min humidity: * Valley floor....16-19 percent. * 7000 feet.......24-34 percent. * 24 hr trend.....On average up 8 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....South winds 5 to 10 mph. Gusts up to 25 mph. * Upper slopes....South winds 5 to 10 mph with gusts to around 25 mph. * 10000 ft msl....South 10 to 15 mph. * CWR (>= 0.10 in)....20 percent increasing to 35 percent in the afternoon. .TONIGHT... * Sky/Weather.........Mostly cloudy. Isolated showers and thunderstorms in the evening. Haze after midnight. * Chance of thunder...20 percent. * Min temperature: * Valley floor....61-66. * 7000 feet.......35-40. * 24 hr trend.....On average down 3 degrees. * Max humidity: * Valley floor....50-55 percent. * 7000 feet.......63-68 percent. * 24 hr trend.....On average up 20 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....Northwest winds 5 to 10 mph in the evening becoming downslope/downvalley 2 to 5 mph. * Upper slopes....West winds 5 to 10 mph in the evening becoming downslope/downvalley 2 to 5 mph. * 10000 ft msl....Southeast 5 to 10 mph. * CWR (>= 0.10 in)....10 percent. .WEDNESDAY... * Sky/Weather.........Mostly sunny then becoming partly cloudy. Scattered showers and isolated thunderstorms. * Chance of thunder...20 percent. * Max temperature: * Valley floor....88-93. * 7000 feet.......74-79. * 24 hr trend.....On average down 4 degrees. * Min humidity: * Valley floor....22-28 percent. * 7000 feet.......35-45 percent. * 24 hr trend.....On average up 9 percent. * Wind (slope/valley=20 ft, 10 min avg): * Slope/valley....Upslope/upvalley 4 to 8 mph becoming southeast up to 10 mph in the afternoon. Gusts up to 20 mph. * Upper slopes....Northeast winds 5 to 10 mph. * 10000 ft msl....Northeast around 10 mph. * CWR (>= 0.10 in)....20 percent. .EXTENDED... .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the upper 50s to lower 60s. Highs in the upper 80s to lower 90s. Southwest winds 5 to 10 mph. .FRIDAY...Partly cloudy. Isolated showers. Lows in the upper 50s to lower 60s. Highs in the upper 80s to lower 90s. Southwest winds 5 to 10 mph. .SATURDAY...Mostly clear. Lows in the mid 50s to lower 60s. Highs in the mid 80s to lower 90s. South winds 5 to 10 mph. $$ CAZ227-022315- Death Valley National Park- 259 AM PDT Tue Sep 2 2025 .TODAY... * Sky/Weather.........Partly cloudy then becoming mostly cloudy. Isolated showers and thunderstorms. * Chance of thunder...20 percent. * Max temperature: * Valley floor....108-113. * 24 hr trend.....On average down 5 degrees. * Min humidity: * Valley floor....9-15 percent. * 24 hr trend.....On average up 4 percent. * Wind (Slope/valley=20 ft, 10 min avg): * Valley floor....Southeast wind 5 to 10 mph shifting to the southwest around 10 mph in the afternoon. * 10000 ft msl....South 10 to 15 mph. * CWR (>= 0.10 in)....0 percent. .TONIGHT... * Sky/Weather.........Mostly cloudy. Isolated thunderstorms in the evening. Isolated showers through the night. * Chance of thunder...20 percent. * Min temperature: * Valley floor....84-89. * 24 hr trend.....On average down 3 degrees. * Max humidity: * Valley floor....29-34 percent. * 24 hr trend.....On average up 13 percent. * Wind (Slope/valley=20 ft, 10 min avg): * Valley floor....West wind around 10 mph shifting to the east after midnight. * 10000 ft msl....Southeast around 10 mph. * CWR (>= 0.10 in)....0 percent. .WEDNESDAY... * Sky/Weather.........Partly cloudy. Isolated showers and thunderstorms. * Chance of thunder...20 percent. * Max temperature: * Valley floor....103-108. * 24 hr trend.....On average down 5 degrees. * Min humidity: * Valley floor....13-22 percent. * 24 hr trend.....On average up 5 percent. * Wind (Slope/valley=20 ft, 10 min avg): * Valley floor....Southeast wind 5 to 10 mph with gusts to around 20 mph in the morning becoming upslope/upvalley 4 to 8 mph. * 10000 ft msl....Northeast 10 to 15 mph. * CWR (>= 0.10 in)....10 percent. .EXTENDED... .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the 80s. Highs 106 to 111. Southeast wind 5 to 10 mph. .FRIDAY...Partly cloudy. Isolated showers. Lows in the 80s. Highs 107 to 112. South wind 5 to 10 mph. .SATURDAY...Mostly clear. Lows in the upper 70s to lower 80s. Highs 106 to 111. South wind around 10 mph. $$ CAZ228-022315- Mojave Desert Including Morongo Valley/Yucca Valley- 259 AM PDT Tue Sep 2 2025 .TODAY... * Sky/Weather.........Partly cloudy. Scattered showers and isolated thunderstorms. * Chance of thunder...20 percent. * Max temperature: * Valley floor....97-102. * 24 hr trend.....On average down 8 degrees. * Min humidity: * Valley floor....19-29 percent. * 24 hr trend.....On average up 12 percent. * Wind (Slope/valley=20 ft, 10 min avg): * Valley floor....South wind 5 to 10 mph. * 10000 ft msl....East 10 to 15 mph. * CWR (>= 0.10 in)....15 percent. .TONIGHT... * Sky/Weather.........Mostly cloudy. Scattered showers in the evening. Isolated thunderstorms through the night. Isolated showers after midnight. * Chance of thunder...20 percent. * Min temperature: * Valley floor....69-74. * 24 hr trend.....On average down 5 degrees. * Max humidity: * Valley floor....52-57 percent. * 24 hr trend.....On average up 20 percent. * Wind (Slope/valley=20 ft, 10 min avg): * Valley floor....North wind 5 to 10 mph in the evening becoming downslope/downvalley 2 to 5 mph. * 10000 ft msl....East 15 to 25 mph. * CWR (>= 0.10 in)....15 percent. .WEDNESDAY... * Sky/Weather.........Partly cloudy. Scattered showers and isolated thunderstorms. * Chance of thunder...20 percent. * Max temperature: * Valley floor....94-99. * 24 hr trend.....On average down 3 degrees. * Min humidity: * Valley floor....26-36 percent. * 24 hr trend.....On average up 7 percent. * Wind (Slope/valley=20 ft, 10 min avg): * Valley floor....Northeast wind 5 to 10 mph shifting to the east in the afternoon. Gusts up to 25 mph. * 10000 ft msl....South 10 to 15 mph. * CWR (>= 0.10 in)....20 percent. .EXTENDED... .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the 70s. Highs in the mid to upper 90s. South wind up to 10 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the 70s. Highs 95 to 100. South wind 5 to 10 mph. .SATURDAY...Mostly clear. Isolated showers and thunderstorms. Lows in the lower to mid 70s. Highs in the 90s. South wind around 10 mph. $$ NOTE: Mixing height...transport winds and ventilation category for each fire zone are based on the following points/areas: IN THE COLORADO RIVER VALLEY: NVZ466-CAZ229-AZZ001 - Laughlin/Bullhead City/Needles IN ARIZONA: AZZ102 - Kingman Vicinity IN NEVADA: NVZ460 - Oriental Wash RAWS vicinity NVZ461 - Kane Springs RAWS vicinity NVZ462 - Desert Rock vicinity NVZ463-NVZ464 - Kyle Canyon vicinity NVZ465 - Las Vegas vicinity http://weather.gov/lasvegas