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

Tracking Winter Weather and Frigid Temperatures This Weekend

Another clipper will drop into the Northern Plains and Upper Midwest into Sunday with snow and gusty winds contributing to some areas of blizzard conditions and snow squalls. Impactful snowfall will occur up and down the East Coast Sunday extending from the western Florida Panhandle to Maine. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

A Few Clouds

36°F

2°C

Humidity 94%
Wind Speed Calm
Barometer 29.99 in (1015.9 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 18 Jan 4:55 am EST
Extended Forecast for

Mount Vernon VA

Winter Weather Advisory January 18, 05:52am until January 18, 06:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory January 18, 05:52am until January 18, 06:00pm

    NOW until 6:00pm Sun

    Winter Weather Advisory

  • Overnight

    Low: 34 °F

    Rain/Snow

  • Sunday

    Sunday: Rain and snow before 11am, then a chance of snow. High near 35. North wind 3 to 8 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Rain/Snow
    then Chance
    Snow

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 21. Northwest wind 5 to 7 mph becoming light and variable after midnight.

    Low: 21 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 40. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17. Northwest wind around 7 mph.

    Low: 17 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 30.

    High: 30 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 16.

    Low: 16 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

Detailed Forecast

Overnight
Rain and snow. Low around 34. Calm wind. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday
Rain and snow before 11am, then a chance of snow. High near 35. North wind 3 to 8 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Sunday Night
Mostly clear, with a low around 21. Northwest wind 5 to 7 mph becoming light and variable after midnight.
M.L.King Day
Sunny, with a high near 40. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Monday Night
Partly cloudy, with a low around 17. Northwest wind around 7 mph.
Tuesday
Sunny, with a high near 30.
Tuesday Night
Mostly clear, with a low around 16.
Wednesday
Sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
Mostly sunny, with a high near 44.
Thursday Night
Mostly clear, with a low around 22.
Friday
Mostly sunny, with a high near 40.
Friday Night
Mostly cloudy, with a low around 30.
Saturday
A chance of rain. Mostly cloudy, with a high near 44. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.72°N 77.08°W (Elev. 13 ft)
Last Update:
5:13 am EST Jan 18, 2026
Forecast Valid:
5am EST Jan 18, 2026-6pm EST Jan 24, 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