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

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Light Snow Fog/Mist

29°F

-2°C

Humidity 96%
Wind Speed E 3 mph
Barometer 30.00 in (1016.2 mb)
Dewpoint 28°F (-2°C)
Visibility 1.50 mi
Last update 5 Dec 10:52 pm EST
Extended Forecast for

Vienna VA

Winter Weather Advisory December 5, 11:03pm until December 6, 01:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 5, 11:03pm until December 6, 01:00am

    NOW until 1:00am Sat

    Winter Weather Advisory

  • Tonight

    Low: 27 °F

    Wintry Mix
    and Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 42. Light southwest wind.

    High: 42 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. Light and variable wind.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 42. Calm wind becoming south around 5 mph.

    High: 42 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 28. Calm wind becoming northwest 5 to 8 mph after midnight.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

Detailed Forecast

Tonight
Freezing rain, possibly mixed with snow before 1am, then a slight chance of freezing rain. Patchy fog. Low around 27. Calm wind. Chance of precipitation is 80%. Little or no ice accumulation expected. Little or no snow accumulation expected.
Saturday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 42. Light southwest wind.
Saturday Night
Partly cloudy, with a low around 27. Light and variable wind.
Sunday
Partly sunny, with a high near 42. Calm wind becoming south around 5 mph.
Sunday Night
Mostly cloudy, with a low around 28. Calm wind becoming northwest 5 to 8 mph after midnight.
Monday
Partly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Mostly sunny, with a high near 37.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
Mostly cloudy, with a high near 46.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 45.
Thursday Night
A chance of rain and snow. Partly cloudy, with a low around 29. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Vienna VA
 38.89°N 77.25°W (Elev. 348 ft)
Last Update:
10:41 pm EST Dec 5, 2025
Forecast Valid:
11pm EST Dec 5, 2025-6pm EST Dec 12, 2025
 
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