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Air Quality Alert AIR QUALITY ALERT - Fairfax

Regional Radar Regional Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.
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Updated: @ 18-Jul-2026 12:35am  
Summary / Temperature Wind Rain Outlook
Smoke, Overcast Smoke, Overcast
Currently: [actual_th0_temp_f], Max: 92.5, Min: 73.6 0°F
 

Very Cold

Feels like: -0°F

  Today Yesterday
High: 92.5°F
2:54pm 		92.5°F
2:54pm
Low: 73.6°F
8:22am 		73.6°F
8:22am
Calm [actual_wind0_dir_en]
0
Gust:
 0 mph
0 Bft - Calm
Today: 4.9 mph 12:21pm
Gust Month: 19.9 mph July 04
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
This Month: 0.03 in
Season Total: 3.36 in
day since last rain.
Saturday

Saturday: Areas Of Smoke then Chance Showers And Thunderstorms
Areas Of Smoke then Chance Showers And T-Storms
Humidity & Barometer Almanac Moon
Humidity: [actual_th0_hum_rel] %  
Dew Point: 0°F  
Barometer: 29.94 inHg  
Baro Trend: Steady
Sunrise: 5:58am
Sunset: 8:32pm
Moonrise: 10:48am
Moonset: 11:07pm
Waxing Crescent
Waxing Crescent, Moon at 4 days in cycle
19%
Illuminated
UV Index Forecast UV Index Forecast
18-Jul-2026
9.8     Very High 
19-Jul-2026
8.6     Very High 
 NWS Weather Forecast  - Outlook: Overnight & Saturday
Overnight

Overnight: Smoke
Smoke

Lo 74 °F		 NWS forecast: Smoke before 2am, then smoke and a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Southeast wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Davis VP+ forecast: Increasing clouds with little temperature change.
 
Saturday

Saturday: Areas Of Smoke then Chance Showers And Thunderstorms
Areas Of Smoke then Chance Showers And T-Storms

Hi 92 °F		 NWS forecast: Areas of smoke before noon, then a chance of showers and thunderstorms between 1pm and 3pm, then showers and thunderstorms likely between 3pm and 5pm, then showers and thunderstorms likely. Mostly cloudy. High near 92, with temperatures falling to around 86 in the afternoon. Heat index values as high as 101. Southwest wind 5 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.