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.

Fair and Breezy

46°F

8°C

Humidity 42%
Wind Speed W 23 G 38 mph
Barometer 29.94 in (1014.2 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 11 Jan 2:55 pm EST
Extended Forecast for

Mount Vernon VA

  • This Afternoon

    This Afternoon: A slight chance of rain before 4pm. Sunny, with a high near 48. Breezy, with a west wind 17 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Rain and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 30. West wind 8 to 14 mph, with gusts as high as 36 mph.

    Low: 30 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 46. Southwest wind around 7 mph.

    High: 46 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30. Southwest wind around 6 mph becoming calm in the evening.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 50 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain. Mostly cloudy, with a low around 36. Chance of precipitation is 50%.

    Low: 36 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain. Mostly cloudy, with a high near 42. Chance of precipitation is 50%.

    High: 42 °F

    Chance Rain

Detailed Forecast

This Afternoon
A slight chance of rain before 4pm. Sunny, with a high near 48. Breezy, with a west wind 17 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 30. West wind 8 to 14 mph, with gusts as high as 36 mph.
Monday
Sunny, with a high near 46. Southwest wind around 7 mph.
Monday Night
Partly cloudy, with a low around 30. Southwest wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 50. Calm wind becoming south 5 to 8 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Mostly cloudy, with a high near 54.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 36. Chance of precipitation is 50%.
Thursday
A chance of rain. Mostly cloudy, with a high near 42. Chance of precipitation is 50%.
Thursday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 37.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Partly sunny, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
A chance of snow. Partly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.72°N 77.11°W (Elev. 36 ft)
Last Update:
12:54 pm EST Jan 11, 2026
Forecast Valid:
3pm EST Jan 11, 2026-6pm EST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation