National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

A Few Clouds

81°F

27°C

Humidity 42%
Wind Speed S 6 mph
Barometer 29.80 in (1009.4 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 11 Mar 1:55 pm EDT
Extended Forecast for

3 Miles SE Mount Vernon VA

  • This Afternoon

    This Afternoon: Isolated showers, then scattered showers and thunderstorms after 3pm. Partly sunny, with a high near 80. South wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    High: 80 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms, then showers likely after 4am. Some of the storms could be severe. Mostly cloudy, with a low around 49. Southwest wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Severe
    Thunderstorms
    then Showers
    Likely

  • Thursday

    Thursday: Rain and snow showers before 5pm, then a chance of rain showers. Temperature falling to around 40 by 2pm. Northwest wind 11 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 51 °F⇓

    Showers then
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32. West wind 5 to 8 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 55. Breezy, with a south wind 5 to 10 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 55 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Isolated showers, then scattered showers and thunderstorms after 3pm. Partly sunny, with a high near 80. South wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms, then showers likely after 4am. Some of the storms could be severe. Mostly cloudy, with a low around 49. Southwest wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Rain and snow showers before 5pm, then a chance of rain showers. Temperature falling to around 40 by 2pm. Northwest wind 11 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
Mostly clear, with a low around 32. West wind 5 to 8 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 55. Breezy, with a south wind 5 to 10 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
Mostly cloudy, with a high near 61.
Sunday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Monday
Rain. High near 69. Chance of precipitation is 80%.
Monday Night
A chance of rain. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
Tuesday
Mostly sunny, with a high near 41.
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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:
1:58 pm EDT Mar 11, 2026
Forecast Valid:
2pm EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation