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

32°F

0°C

Humidity 67%
Wind Speed E 6 mph
Barometer 30.27 in (1025.4 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 1 Dec 6:55 pm EST
Extended Forecast for

Mount Vernon VA

  • Tonight

    Tonight: A slight chance of rain before 4am, then rain likely, possibly mixed with sleet. Mostly cloudy, with a low around 33. Southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%. Little or no sleet accumulation expected.

    Low: 33 °F

    Mostly Cloudy
    then
    Rain/Sleet
    Likely

  • Tuesday

    Tuesday: Rain, possibly mixed with sleet before 3pm, then a chance of rain between 3pm and 4pm. High near 41. Calm wind becoming northwest 5 to 8 mph in the morning. Chance of precipitation is 100%. Little or no sleet accumulation expected.

    High: 41 °F

    Rain/Sleet
    then Rain

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 30. Northwest wind 9 to 11 mph.

    Low: 30 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 41. Northwest wind 5 to 7 mph becoming calm in the afternoon.

    High: 41 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 32. South wind 3 to 6 mph.

    Low: 32 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.

    Low: 31 °F

    Chance Snow

Detailed Forecast

Tonight
A slight chance of rain before 4am, then rain likely, possibly mixed with sleet. Mostly cloudy, with a low around 33. Southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%. Little or no sleet accumulation expected.
Tuesday
Rain, possibly mixed with sleet before 3pm, then a chance of rain between 3pm and 4pm. High near 41. Calm wind becoming northwest 5 to 8 mph in the morning. Chance of precipitation is 100%. Little or no sleet accumulation expected.
Tuesday Night
Mostly clear, with a low around 30. Northwest wind 9 to 11 mph.
Wednesday
Sunny, with a high near 41. Northwest wind 5 to 7 mph becoming calm in the afternoon.
Wednesday Night
Mostly clear, with a low around 32. South wind 3 to 6 mph.
Thursday
Partly sunny, with a high near 43.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Mostly cloudy, with a high near 36.
Friday Night
A chance of snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Saturday
Partly sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
Partly sunny, with a high near 43.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.69°N 77.09°W (Elev. 3 ft)
Last Update:
6:53 pm EST Dec 1, 2025
Forecast Valid:
7pm EST Dec 1, 2025-6pm EST Dec 8, 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