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

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Light Rain

55°F

13°C

Humidity 93%
Wind Speed E 7 mph
Barometer 29.89 in (1011.9 mb)
Dewpoint 53°F (12°C)
Visibility 7.00 mi
Wind Chill53°F (12°C)
Last update 21 May 10:52 am EDT
Extended Forecast for

Vienna VA

  • Today

    Today: Showers likely, mainly before noon. Cloudy, with a high near 59. East wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms before 3am, then isolated showers between 3am and 4am. Patchy fog. Low around 55. East wind 5 to 9 mph becoming light after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers and
    Patchy Fog
    then
    Scattered
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 68. Southwest wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 52. West wind around 7 mph. Chance of precipitation is 30%.

    Low: 52 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers after 2pm. Mostly sunny, with a high near 66. West wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 66 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of showers after 2pm. Partly sunny, with a high near 67. Chance of precipitation is 30%.

    High: 67 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Showers likely, mainly before noon. Cloudy, with a high near 59. East wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Showers and thunderstorms before 3am, then isolated showers between 3am and 4am. Patchy fog. Low around 55. East wind 5 to 9 mph becoming light after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 68. Southwest wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 52. West wind around 7 mph. Chance of precipitation is 30%.
Friday
A slight chance of showers after 2pm. Mostly sunny, with a high near 66. West wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 49.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Mostly clear, with a low around 49.
Sunday
A chance of showers after 2pm. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 50%.
Monday Night
Showers likely. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Tuesday
A chance of showers. Partly sunny, with a high near 71. 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:
10:30 am EDT May 21, 2025
Forecast Valid:
11am EDT May 21, 2025-6pm EDT May 27, 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