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.

Mostly Cloudy

74°F

23°C

Humidity 85%
Wind Speed NW 6 mph
Barometer 30.11 in (1019.2 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 15 Aug 3:52 am EDT
Extended Forecast for

Tysons Corner VA

  • Today

    Today: Increasing clouds, with a high near 87. North wind around 5 mph becoming light and variable in the afternoon.

    High: 87 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A slight chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 71. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 71 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms, mainly before 4pm. High near 84. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 84 °F

    Showers then
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 72. South wind 6 to 8 mph becoming west after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    T-storms
    Likely then
    Showers
    Likely

  • Monday

    Monday: Mostly sunny, with a high near 88. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 88 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 87. North wind around 5 mph becoming light and variable in the afternoon.
Tonight
A slight chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 71. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.
Sunday
Showers and thunderstorms, mainly before 4pm. High near 84. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. South wind 6 to 8 mph becoming west after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 88. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Sunny, with a high near 88.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 71. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Friday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tysons Corner VA
 38.91°N 77.22°W (Elev. 449 ft)
Last Update:
4:29 am EDT Aug 15, 2026
Forecast Valid:
4am EDT Aug 15, 2026-6pm EDT Aug 21, 2026
 
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