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

Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

42°F

6°C

Humidity 20%
Wind Speed S 6 mph
Barometer 30.22 in (1023.7 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 21 Jan 4:55 pm EST
Extended Forecast for

Annandale VA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 35. South wind around 10 mph, with gusts as high as 22 mph.

    Low: 35 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 51. Southwest wind 7 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 51 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28. Northwest wind around 5 mph becoming calm in the evening.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 42. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 42 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 12. North wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 12 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow after 1pm. Cloudy, with a high near 19. Chance of precipitation is 40%.

    High: 19 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Snow. Low around 15. Chance of precipitation is 90%.

    Low: 15 °F

    Snow

  • Sunday

    Sunday: Snow. High near 21. Chance of precipitation is 90%.

    High: 21 °F

    Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 60%.

    Low: 15 °F

    Snow Likely

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 35. South wind around 10 mph, with gusts as high as 22 mph.
Thursday
Mostly sunny, with a high near 51. Southwest wind 7 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 28. Northwest wind around 5 mph becoming calm in the evening.
Friday
Mostly cloudy, with a high near 42. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 12. North wind 10 to 13 mph, with gusts as high as 23 mph.
Saturday
A chance of snow after 1pm. Cloudy, with a high near 19. Chance of precipitation is 40%.
Saturday Night
Snow. Low around 15. Chance of precipitation is 90%.
Sunday
Snow. High near 21. Chance of precipitation is 90%.
Sunday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 24.
Monday Night
Mostly clear, with a low around 6.
Tuesday
Sunny, with a high near 24.
Tuesday Night
Partly cloudy, with a low around 7.
Wednesday
Partly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Annandale VA
 38.82°N 77.21°W (Elev. 331 ft)
Last Update:
3:53 pm EST Jan 21, 2026
Forecast Valid:
5pm EST Jan 21, 2026-6pm EST Jan 28, 2026
 
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Additional Resources

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Chance of Precipitation