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.

Partly Cloudy

24°F

-4°C

Humidity 42%
Wind Speed W 14 G 23 mph
Barometer 30.04 in (1017.6 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 26 Jan 5:55 pm EST
Extended Forecast for

Mount Vernon VA

Cold Weather Advisory January 26, 07:00pm until January 27, 11:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 3. West wind 5 to 10 mph, with gusts as high as 21 mph.

    Low: 3 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 28. Wind chill values as low as -4. Light west wind becoming southwest 5 to 9 mph in the morning.

    High: 28 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 8. Wind chill values as low as zero. Northwest wind 3 to 6 mph.

    Low: 8 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Increasing clouds, with a high near 25. Wind chill values as low as -1. West wind 5 to 7 mph.

    High: 25 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 8. Light and variable wind.

    Low: 8 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 23.

    High: 23 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 3.

    Low: 3 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 20.

    High: 20 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 5.

    Low: 5 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 3. West wind 5 to 10 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 28. Wind chill values as low as -4. Light west wind becoming southwest 5 to 9 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 8. Wind chill values as low as zero. Northwest wind 3 to 6 mph.
Wednesday
Increasing clouds, with a high near 25. Wind chill values as low as -1. West wind 5 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 8. Light and variable wind.
Thursday
Sunny, with a high near 23.
Thursday Night
Mostly clear, with a low around 3.
Friday
Mostly sunny, with a high near 20.
Friday Night
Partly cloudy, with a low around 5.
Saturday
Partly sunny, with a high near 21.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 26.
Sunday Night
Partly cloudy, with a low around 14.
Monday
Mostly sunny, with a high near 32.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.72°N 77.11°W (Elev. 36 ft)
Last Update:
5:48 pm EST Jan 26, 2026
Forecast Valid:
6pm EST Jan 26, 2026-6pm EST Feb 2, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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