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.

A Few Clouds

71°F

22°C

Humidity 76%
Wind Speed S 5 mph
Barometer 30.04 in (1017.0 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 21 May 8:52 am EDT
Extended Forecast for

Vienna VASimilar City Names

  • Today

    Today: Sunny, with a high near 83. South wind 3 to 8 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. South wind around 7 mph.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. South wind 6 to 8 mph.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 69. South wind 5 to 7 mph. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 85. Light southwest wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 60%.

    High: 85 °F

    Partly Sunny
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.

    Low: 65 °F

    Chance
    T-storms

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 83. South wind 3 to 8 mph.
Tonight
Mostly clear, with a low around 61. South wind around 7 mph.
Wednesday
Mostly sunny, with a high near 88. South wind 6 to 8 mph.
Wednesday Night
A slight chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 69. South wind 5 to 7 mph. Chance of precipitation is 20%.
Thursday
Showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 85. Light southwest wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Friday
A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Saturday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Memorial Day
A chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Vienna VASimilar City Names
 38.89°N 77.25°W (Elev. 348 ft)
Last Update:
7:29 am EDT May 21, 2024
Forecast Valid:
9am EDT May 21, 2024-6pm EDT May 27, 2024
 
Forecast Discussion
 
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Additional Resources

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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