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

33°F

1°C

Humidity 78%
Wind Speed Calm
Barometer 30.09 in (1019.3 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 3 Dec 6:55 pm EST
Extended Forecast for

Lorton VA

  • 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 22 mph.

    High: 44 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 23. Northwest wind 5 to 9 mph becoming light and variable after midnight.

    Low: 23 °F

    Increasing
    Clouds

  • Friday

    Friday: A chance of snow. Cloudy, with a high near 36. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 50%.

    High: 36 °F

    Chance Snow

  • Friday Night

    Friday Night: A chance of snow before 10pm, then a chance of snow and freezing rain between 10pm and 1am, then a slight chance of freezing rain after 1am. Mostly cloudy, with a low around 26. Calm wind. Chance of precipitation is 30%.

    Low: 26 °F

    Chance Wintry
    Mix

  • 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

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

Detailed Forecast

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 22 mph.
Thursday Night
Increasing clouds, with a low around 23. Northwest wind 5 to 9 mph becoming light and variable after midnight.
Friday
A chance of snow. Cloudy, with a high near 36. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 50%.
Friday Night
A chance of snow before 10pm, then a chance of snow and freezing rain between 10pm and 1am, then a slight chance of freezing rain after 1am. Mostly cloudy, with a low around 26. Calm wind. 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
Mostly sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
Partly sunny, with a high near 46.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lorton VA
 38.71°N 77.23°W (Elev. 125 ft)
Last Update:
6:52 pm EST Dec 3, 2025
Forecast Valid:
7pm EST Dec 3, 2025-6pm EST Dec 10, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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