Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

A Few Clouds

38°F

3°C

Humidity 40%
Wind Speed W 10 mph
Barometer 29.99 in (1015.9 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 17 Mar 9:55 am EDT
Extended Forecast for

Mount Vernon VA

  • Today

    Today: Partly sunny, with a high near 43. West wind around 11 mph, with gusts as high as 21 mph.

    High: 43 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 27. Northwest wind 6 to 11 mph becoming light  after midnight. Winds could gust as high as 18 mph.

    Low: 27 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 43. Calm wind becoming south around 6 mph in the afternoon.

    High: 43 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. South wind 3 to 5 mph.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 55. South wind 3 to 6 mph.

    High: 55 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of rain.  Mostly cloudy, with a low around 46. Chance of precipitation is 30%.

    Low: 46 °F

    Chance Rain

  • Saturday

    Saturday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 43. West wind around 11 mph, with gusts as high as 21 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 27. Northwest wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 18 mph.
Wednesday
Mostly sunny, with a high near 43. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 31. South wind 3 to 5 mph.
Thursday
Partly sunny, with a high near 55. South wind 3 to 6 mph.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Partly sunny, with a high near 63.
Friday Night
A chance of rain. Mostly cloudy, with a low around 46. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Partly sunny, with a high near 70.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.
Monday
A chance of rain. Mostly sunny, with a high near 56. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.74°N 77.11°W (Elev. 49 ft)
7:53 am EDT Mar 17, 2026
10am EDT Mar 17, 2026-6pm EDT Mar 23, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database