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.

Partly Cloudy

74°F

23°C

Humidity 60%
Wind Speed Vrbl 6 mph
Barometer 30.26 in (1024.5 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 2 Aug 10:52 am EDT
Extended Forecast for

Vienna VA

  • Today

    Today: Partly sunny, with a high near 80. Northeast wind around 7 mph.

    High: 80 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. Calm wind becoming east 5 to 7 mph in the morning.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62. East wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 85. Light and variable wind becoming northeast 5 to 7 mph in the morning.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.

    High: 81 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 80. Northeast wind around 7 mph.
Tonight
Mostly clear, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 83. Calm wind becoming east 5 to 7 mph in the morning.
Sunday Night
Partly cloudy, with a low around 62. East wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 85. Light and variable wind becoming northeast 5 to 7 mph in the morning.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Mostly cloudy, with a low around 66.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
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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:
10:29 am EDT Aug 2, 2025
Forecast Valid:
11am EDT Aug 2, 2025-6pm EDT Aug 8, 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