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

38°F

3°C

Humidity 36%
Wind Speed W 20 G 33 mph
Barometer 30.20 in (1022.7 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 28 Nov 2:52 pm EST
Extended Forecast for

Vienna VA

  • Tonight

    Tonight: Mostly clear, with a low around 26. West wind 7 to 13 mph, with gusts as high as 24 mph.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 42. Northwest wind around 6 mph becoming calm in the afternoon.

    High: 42 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 30. Calm wind becoming south around 6 mph after midnight.

    Low: 30 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain likely, mainly after 1pm. Cloudy, with a high near 45. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of snow after 1am. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tuesday

    Tuesday: Rain. High near 38. Chance of precipitation is 80%.

    High: 38 °F

    Rain

  • Tuesday Night

    Tuesday Night: A chance of rain before 1am. Partly cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 26. West wind 7 to 13 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 42. Northwest wind around 6 mph becoming calm in the afternoon.
Saturday Night
Increasing clouds, with a low around 30. Calm wind becoming south around 6 mph after midnight.
Sunday
Rain likely, mainly after 1pm. Cloudy, with a high near 45. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Partly cloudy, with a low around 30. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 42.
Monday Night
A chance of snow after 1am. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Tuesday
Rain. High near 38. Chance of precipitation is 80%.
Tuesday Night
A chance of rain before 1am. Partly cloudy, with a low around 28. Chance of precipitation is 30%.
Wednesday
Sunny, with a high near 40.
Wednesday Night
Partly cloudy, with a low around 27.
Thursday
Partly sunny, with a high near 43.
Thursday Night
Partly cloudy, with a low around 24.
Friday
Partly sunny, with a high near 38.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Vienna VA
 38.89°N 77.25°W (Elev. 348 ft)
Last Update:
2:43 pm EST Nov 28, 2025
Forecast Valid:
3pm EST Nov 28, 2025-6pm EST Dec 5, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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