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

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

Heavy lake effect snow will continue in the Great Lakes into Wednesday before another storm brings a widespread general snow followed by another round of heavy lake effect snow. A wide-ranging winter storm will produce great swaths of heavy snow, sleet, and treacherous freezing rain from the southern Rockies/Plains and Mid-South starting Friday and shifting toward the East Coast through Sunday. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Fair

29°F

-2°C

Humidity 21%
Wind Speed W 9 mph
Barometer 30.40 in (1030.0 mb)
Dewpoint -6°F (-21°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 20 Jan 4:52 pm EST
Extended Forecast for

Washington-Dulles International Airport VA

  • Tonight

    Tonight: Clear, with a low around 12. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 12 °F

    Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 40. Light south wind increasing to 12 to 17 mph in the morning. Winds could gust as high as 29 mph.

    High: 40 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30. South wind 8 to 13 mph, with gusts as high as 23 mph.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 50. West wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 50 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25. Northwest wind around 5 mph becoming calm in the evening.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 10.

    Low: 10 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow after 1pm. Cloudy, with a high near 18. Chance of precipitation is 40%.

    High: 18 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Snow. Low around 13. Chance of precipitation is 80%.

    Low: 13 °F

    Snow

Detailed Forecast

Tonight
Clear, with a low around 12. Northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Increasing clouds, with a high near 40. Light south wind increasing to 12 to 17 mph in the morning. Winds could gust as high as 29 mph.
Wednesday Night
Partly cloudy, with a low around 30. South wind 8 to 13 mph, with gusts as high as 23 mph.
Thursday
Mostly sunny, with a high near 50. West wind 6 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 25. Northwest wind around 5 mph becoming calm in the evening.
Friday
Mostly cloudy, with a high near 38.
Friday Night
Mostly cloudy, with a low around 10.
Saturday
A chance of snow after 1pm. Cloudy, with a high near 18. Chance of precipitation is 40%.
Saturday Night
Snow. Low around 13. Chance of precipitation is 80%.
Sunday
Snow, mainly before 1pm. High near 20. Chance of precipitation is 80%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 9. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 24.
Monday Night
Partly cloudy, with a low around 6.
Tuesday
Mostly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Washington-Dulles International Airport VA
 38.96°N 77.47°W (Elev. 269 ft)
Last Update:
3:53 pm EST Jan 20, 2026
Forecast Valid:
5pm EST Jan 20, 2026-6pm EST Jan 27, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation