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

73°F

23°C

Humidity 48%
Wind Speed S 16 G 26 mph
Barometer 29.71 in (1005.8 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 26 Mar 10:52 pm EDT
Extended Forecast for

Vienna VA

  • Tonight

    Tonight: A chance of rain, mainly after 5am. Mostly cloudy, with a low around 50. Southwest wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    Low: 50 °F

    Chance Rain

  • Friday

    Friday: Rain. Temperature falling to around 49 by 5pm. North wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F⇓

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 33. Northwest wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Rain Likely
    then Chance
    Rain

  • Saturday

    Saturday: Sunny, with a high near 47. Northwest wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 47 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32. Light and variable wind.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain after 8pm. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.

    Low: 53 °F

    Chance Rain

Detailed Forecast

Tonight
A chance of rain, mainly after 5am. Mostly cloudy, with a low around 50. Southwest wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Friday
Rain. Temperature falling to around 49 by 5pm. North wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain likely, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 33. Northwest wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 47. Northwest wind 11 to 14 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 32. Light and variable wind.
Sunday
Mostly sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Partly sunny, with a high near 65.
Monday Night
A chance of rain after 8pm. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Tuesday
A chance of rain after 2pm. Partly sunny, with a high near 71. Chance of precipitation is 40%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Wednesday
A chance of rain. Partly sunny, with a high near 77. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Thursday
A chance of rain. Partly sunny, with a high near 80. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Vienna VA
 38.89°N 77.25°W (Elev. 348 ft)
Last Update:
10:53 pm EDT Mar 26, 2026
Forecast Valid:
11pm EDT Mar 26, 2026-6pm EDT Apr 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation