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

31°F

-1°C

Humidity 94%
Wind Speed Calm
Barometer 30.06 in (1018.3 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 7 Dec 8:55 pm EST
Extended Forecast for

Lorton VA

  • Tonight

    Tonight: Cloudy, with a low around 27. Calm wind becoming north 5 to 9 mph after midnight.

    Low: 27 °F

    Cloudy

  • Monday

    Monday: A chance of snow, mainly before noon. Mostly cloudy, with a high near 33. North wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 33 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 18. Northeast wind around 6 mph becoming calm after midnight.

    Low: 18 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 38 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32. South wind 8 to 10 mph.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 50.

    High: 50 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

    Low: 29 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
Cloudy, with a low around 27. Calm wind becoming north 5 to 9 mph after midnight.
Monday
A chance of snow, mainly before noon. Mostly cloudy, with a high near 33. North wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 18. Northeast wind around 6 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 38. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 32. South wind 8 to 10 mph.
Wednesday
Mostly cloudy, with a high near 50.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Partly sunny, with a high near 46.
Thursday Night
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Friday
A chance of rain and snow before 1pm. Partly sunny, with a high near 41. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 22.
Saturday
Mostly sunny, with a high near 35.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Sunny, with a high near 33.
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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:
6:53 pm EST Dec 7, 2025
Forecast Valid:
9pm EST Dec 7, 2025-6pm EST Dec 14, 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