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Heat Advisory HEAT ADVISORY - Fairfax  - Hanover
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 10:35am  
Summary / Temperature Wind Rain Outlook
Smoke, Mostly cloudy Smoke, Mostly cloudy
Currently: 81.9, Max: 81.7, Min: 76.6 81.9°F
Warmer 1.7°F than last hour.

Warm

Feels like: 88°F

  Today Yesterday
High: 81.7°F
10:31am 		92.5°F
2:54pm
Low: 76.6°F
6:53am 		73.6°F
8:22am
Wind from ESE ESE
0.9
Gust:
 0 mph
0 Bft - Calm
Today: 10.1 mph 8:29am
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.
Tonight

Tonight: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Humidity & Barometer Almanac Moon
Humidity: 77 % Decreased 1.5% since last hour.
Dew Point: 73.9°F Increased 1.0°F since last hour.
Barometer: 29.85 inHg Falling 0.01 inHg/hr
Baro Trend: Steady
Sunrise: 5:58am
Sunset: 8:32pm
Moonrise: 10:48am
Moonset: 11:07pm
Waxing Crescent
Waxing Crescent, Moon at 5 days in cycle
22%
Illuminated
UV Index Forecast UV Index Forecast
18-Jul-2026
9.7     Very High 
19-Jul-2026
8.6     Very High 
 NWS Weather Forecast  - Outlook: Today & Tonight
Today

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

Hi 94 °F		 NWS forecast: Areas of smoke before 2pm, then a chance of showers and thunderstorms. Some of the storms could be severe. Mostly cloudy. High near 94, with temperatures falling to around 87 in the afternoon. Heat index values as high as 103. Southwest wind 6 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Davis VP+ forecast: Increasing clouds with little temperature change.
 
Tonight

Tonight: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Lo 73 °F		 NWS forecast: A chance of showers and thunderstorms before 1am. Some of the storms could be severe. Mostly cloudy, with a low around 73. West wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.