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

76°F

24°C

Humidity 77%
Wind Speed S 5 mph
Barometer 29.85 in (1010.7 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 26 Jul 8:52 pm EDT
Extended Forecast for

Tysons Corner VA

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers between midnight and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 67. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms, mainly between 9pm and 10pm. Mostly cloudy, with a low around 69. South wind 3 to 5 mph. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 82. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 82 °F

    Showers
    Likely then
    Showers

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 67. Northwest wind 7 to 9 mph. Chance of precipitation is 80%.

    Low: 67 °F

    Showers then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 30%.

    High: 83 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers between midnight and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 67. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
A slight chance of showers and thunderstorms, mainly between 9pm and 10pm. Mostly cloudy, with a low around 69. South wind 3 to 5 mph. Chance of precipitation is 20%.
Tuesday
Showers and possibly a thunderstorm. High near 82. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 67. Northwest wind 7 to 9 mph. Chance of precipitation is 80%.
Wednesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
Partly cloudy, with a low around 67.
Friday
Sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 69.
Saturday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Tysons Corner VA
 38.91°N 77.22°W (Elev. 449 ft)
Last Update:
7:53 pm EDT Jul 26, 2026
Forecast Valid:
9pm EDT Jul 26, 2026-6pm EDT Aug 2, 2026
 
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