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

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

40°F

4°C

Humidity 51%
Wind Speed NW 8 mph
Barometer 30.10 in (1019.6 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 3 Dec 9:55 am EST
Extended Forecast for

Lorton VA

  • Today

    Today: Sunny, with a high near 43. Northwest wind 5 to 7 mph becoming calm in the afternoon.

    High: 43 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 26. Light and variable wind.

    Low: 26 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 44. Light northwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 44 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 21. Northwest wind 6 to 9 mph.

    Low: 21 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow, mainly after 1pm. Mostly cloudy, with a high near 36. East wind 5 to 8 mph becoming south in the afternoon. Chance of precipitation is 40%.

    High: 36 °F

    Chance Snow

  • Friday Night

    Friday Night: A chance of rain and snow before 10pm, then a chance of freezing rain. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.

    Low: 26 °F

    Chance Wintry
    Mix then
    Chance
    Freezing Rain

  • Saturday

    Saturday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 43. Northwest wind 5 to 7 mph becoming calm in the afternoon.
Tonight
Mostly clear, with a low around 26. Light and variable wind.
Thursday
Increasing clouds, with a high near 44. Light northwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 21. Northwest wind 6 to 9 mph.
Friday
A chance of snow, mainly after 1pm. Mostly cloudy, with a high near 36. East wind 5 to 8 mph becoming south in the afternoon. Chance of precipitation is 40%.
Friday Night
A chance of rain and snow before 10pm, then a chance of freezing rain. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
Partly sunny, with a high near 43.
Sunday Night
Mostly cloudy, with a low around 29.
Monday
Partly sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Partly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lorton VA
 38.71°N 77.23°W (Elev. 125 ft)
Last Update:
9:52 am EST Dec 3, 2025
Forecast Valid:
10am EST Dec 3, 2025-6pm EST Dec 9, 2025
 
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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