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.

Overcast

37°F

3°C

Humidity 48%
Wind Speed S 7 mph
Barometer 30.41 in (1030.0 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 30 Nov 1:52 am EST
Extended Forecast for

Vienna VA

  • Overnight

    Overnight: Mostly cloudy, with a low around 31. South wind around 6 mph.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain and snow likely before 11am, then a chance of rain between 11am and 3pm. Mostly cloudy, with a high near 44. South wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 44 °F

    Rain/Snow
    Likely then
    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30. Southwest wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 43. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 43 °F

    Sunny

  • Monday Night

    Monday Night: Snow likely after 1am, mixing with rain after 4am. Mostly cloudy, with a low around 30. Light south wind. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 30 °F

    Mostly Cloudy
    then
    Rain/Snow
    Likely

  • Tuesday

    Tuesday: Rain and snow, becoming all rain after 10am. High near 40. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain/Snow
    then Rain

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 31. South wind around 6 mph.
Sunday
Rain and snow likely before 11am, then a chance of rain between 11am and 3pm. Mostly cloudy, with a high near 44. South wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday Night
Partly cloudy, with a low around 30. Southwest wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Monday
Sunny, with a high near 43. North wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Snow likely after 1am, mixing with rain after 4am. Mostly cloudy, with a low around 30. Light south wind. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Tuesday
Rain and snow, becoming all rain after 10am. High near 40. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Tuesday Night
Mostly clear, with a low around 26.
Wednesday
Sunny, with a high near 40.
Wednesday Night
Partly cloudy, with a low around 27.
Thursday
Partly sunny, with a high near 45.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Partly sunny, with a high near 34.
Friday Night
Snow and freezing rain likely. Cloudy, with a low around 28. Chance of precipitation is 60%.
Saturday
A chance of rain. Mostly cloudy, with a high near 40. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Vienna VA
 38.89°N 77.25°W (Elev. 348 ft)
Last Update:
12:53 am EST Nov 30, 2025
Forecast Valid:
2am EST Nov 30, 2025-6pm EST Dec 6, 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