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

35°F

2°C

Humidity 43%
Wind Speed NW 10 mph
Barometer 30.35 in (1028.1 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 24 Mar 5:55 am EDT
Extended Forecast for

Mount Vernon VA

  • Today

    Today: Sunny, with a high near 53. North wind 5 to 7 mph becoming calm in the afternoon.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 38. Light south wind.

    Low: 38 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 60. Light south wind increasing to 5 to 9 mph in the morning.

    High: 60 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 48. South wind around 7 mph.

    Low: 48 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 75. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 75 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A slight chance of rain, then a chance of rain and thunderstorms after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.

    Low: 57 °F

    Slight Chance
    Rain then
    Chance Rain

  • Friday

    Friday: Rain likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.

    High: 66 °F

    Rain Likely

  • Friday Night

    Friday Night: A chance of rain before 2am. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

    Low: 33 °F

    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 53. North wind 5 to 7 mph becoming calm in the afternoon.
Tonight
Increasing clouds, with a low around 38. Light south wind.
Wednesday
Partly sunny, with a high near 60. Light south wind increasing to 5 to 9 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 48. South wind around 7 mph.
Thursday
Partly sunny, with a high near 75. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Thursday Night
A slight chance of rain, then a chance of rain and thunderstorms after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
Friday
Rain likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.
Friday Night
A chance of rain before 2am. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 51.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.74°N 77.11°W (Elev. 49 ft)
Last Update:
4:53 am EDT Mar 24, 2026
Forecast Valid:
6am EDT Mar 24, 2026-6pm EDT Mar 30, 2026
 
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