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 51%
Wind Speed W 5 mph
Barometer 30.25 in (1024.7 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 12 Jan 4:55 am EST
Extended Forecast for

3 Miles SE Mount Vernon VA

  • Today

    Today: Sunny, with a high near 47. Southwest wind 5 to 7 mph.

    High: 47 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 31. South wind around 6 mph becoming calm in the evening.

    Low: 31 °F

    Mostly Clear

  • Tuesday

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

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40. Southwest wind around 9 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain. Mostly cloudy, with a high near 53. Southwest wind around 7 mph. Chance of precipitation is 20%.

    High: 53 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.

    Low: 37 °F

    Rain Likely

  • Thursday

    Thursday: A chance of rain before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 41. Chance of precipitation is 50%.

    High: 41 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow before 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.

    Low: 24 °F

    Chance
    Rain/Snow

  • Friday

    Friday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 47. Southwest wind 5 to 7 mph.
Tonight
Mostly clear, with a low around 31. South wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 50. Calm wind becoming south 5 to 8 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 40. Southwest wind around 9 mph, with gusts as high as 20 mph.
Wednesday
A slight chance of rain. Mostly cloudy, with a high near 53. Southwest wind around 7 mph. Chance of precipitation is 20%.
Wednesday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Thursday
A chance of rain before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 41. Chance of precipitation is 50%.
Thursday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 36.
Friday Night
Mostly clear, with a low around 25.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 36.
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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:
3:53 am EST Jan 12, 2026
Forecast Valid:
5am EST Jan 12, 2026-6pm EST Jan 18, 2026
 
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Additional Resources

Radar & Satellite Image

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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