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

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

32°F

0°C

Humidity 26%
Wind Speed NW 13 G 24 mph
Barometer 29.91 in (1013.1 mb)
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 1 Jan 2:52 pm EST
Extended Forecast for

Vienna VA

  • Tonight

    Tonight: A slight chance of snow after 2am. Mostly cloudy, with a low around 24. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 24 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 41. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 41 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 26. North wind 3 to 5 mph.

    Low: 26 °F

    Mostly Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 37. Light and variable wind.

    High: 37 °F

    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 40.

    High: 40 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of snow after 2am. Mostly cloudy, with a low around 24. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 41. Calm wind becoming northwest around 6 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 26. North wind 3 to 5 mph.
Saturday
Cloudy, with a high near 37. Light and variable wind.
Saturday Night
Mostly cloudy, with a low around 26. Calm wind.
Sunday
Sunny, with a high near 40.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Mostly cloudy, with a high near 40.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Mostly cloudy, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
A chance of rain. Mostly cloudy, with a high near 56. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
Partly sunny, with a high near 53.
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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:
12:54 pm EST Jan 1, 2026
Forecast Valid:
3pm EST Jan 1, 2026-6pm EST Jan 8, 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