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.

Mostly Cloudy

33°F

1°C

Humidity 30%
Wind Speed SW 6 mph
Barometer 30.04 in (1017.6 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 16 Jan 11:55 am EST
Extended Forecast for

3 Miles SE Mount Vernon VA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 38. South wind around 9 mph.

    High: 38 °F

    Partly Sunny

  • Tonight

    Tonight: Scattered snow showers after 2am. Increasing clouds, with a low around 33. South wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 33 °F

    Partly Cloudy
    then
    Scattered
    Snow Showers

  • Saturday

    Saturday: Scattered rain and snow showers before 10am, then scattered rain showers between 10am and noon. Mostly cloudy, with a high near 49. Southwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    High: 49 °F

    Scattered
    Rain/Snow
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: A chance of rain after 1am, mixing with snow after 4am. Mostly cloudy, with a low around 33. Light and variable wind. Chance of precipitation is 40%.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of snow before 4pm, then a chance of rain and snow. Cloudy, with a high near 37. North wind 3 to 6 mph. Chance of precipitation is 40%.

    High: 37 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A chance of rain before 7pm. Mostly clear, with a low around 22. Chance of precipitation is 30%.

    Low: 22 °F

    Chance Rain
    then Mostly
    Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 40.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 16.

    Low: 16 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 27.

    High: 27 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 38. South wind around 9 mph.
Tonight
Scattered snow showers after 2am. Increasing clouds, with a low around 33. South wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Saturday
Scattered rain and snow showers before 10am, then scattered rain showers between 10am and noon. Mostly cloudy, with a high near 49. Southwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Saturday Night
A chance of rain after 1am, mixing with snow after 4am. Mostly cloudy, with a low around 33. Light and variable wind. Chance of precipitation is 40%.
Sunday
A chance of snow before 4pm, then a chance of rain and snow. Cloudy, with a high near 37. North wind 3 to 6 mph. Chance of precipitation is 40%.
Sunday Night
A chance of rain before 7pm. Mostly clear, with a low around 22. Chance of precipitation is 30%.
M.L.King Day
Sunny, with a high near 40.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Sunny, with a high near 27.
Tuesday Night
Mostly clear, with a low around 15.
Wednesday
Mostly sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
Partly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Mount Vernon VA
 38.69°N 77.06°W (Elev. 144 ft)
Last Update:
11:44 am EST Jan 16, 2026
Forecast Valid:
12pm EST Jan 16, 2026-6pm EST Jan 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation