National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

85°F

29°C

Humidity 65%
Wind Speed Calm
Barometer 30.14 in (1020.9 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 21 Jun 10:55 am EDT
Extended Forecast for

Fairfax Station VA

  • Today

    Today: Mostly sunny, with a high near 91. Southwest wind 3 to 6 mph.

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 72. South wind around 6 mph.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 96. Heat index values as high as 103. Southwest wind around 6 mph.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. Southwest wind 3 to 6 mph.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 98. Northwest wind 3 to 6 mph.

    High: 98 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 77.

    Low: 77 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

Today
Mostly sunny, with a high near 91. Southwest wind 3 to 6 mph.
Tonight
Mostly clear, with a low around 72. South wind around 6 mph.
Sunday
Sunny, with a high near 96. Heat index values as high as 103. Southwest wind around 6 mph.
Sunday Night
Mostly clear, with a low around 75. Southwest wind 3 to 6 mph.
Monday
Sunny and hot, with a high near 98. Northwest wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 78.
Tuesday
Sunny and hot, with a high near 99.
Tuesday Night
Partly cloudy, with a low around 77.
Wednesday
Mostly sunny and hot, with a high near 97.
Wednesday Night
Partly cloudy, with a low around 76.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fairfax Station VA
 38.81°N 77.33°W (Elev. 387 ft)
Last Update:
10:29 am EDT Jun 21, 2025
Forecast Valid:
11am EDT Jun 21, 2025-6pm EDT Jun 27, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation