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

71°F

22°C

Humidity 31%
Wind Speed S 14 G 22 mph
Barometer 29.93 in (1013.4 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 20 Mar 1:52 pm EDT
Extended Forecast for

Washington-Dulles International Airport VA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 72. Southwest wind around 17 mph, with gusts as high as 28 mph.

    High: 72 °F

    Mostly Cloudy

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then isolated showers between 2am and 3am. Cloudy during the early evening, then gradual clearing, with a low around 49. South wind 6 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 65. North wind 6 to 8 mph.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47. Light and variable wind becoming south around 6 mph after midnight.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 80. South wind 6 to 10 mph.

    High: 80 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.

    Low: 53 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers likely before 8am. Partly sunny, with a high near 60. Chance of precipitation is 60%.

    High: 60 °F

    Showers
    Likely then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 72. Southwest wind around 17 mph, with gusts as high as 28 mph.
Tonight
Showers and thunderstorms likely before 2am, then isolated showers between 2am and 3am. Cloudy during the early evening, then gradual clearing, with a low around 49. South wind 6 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Mostly sunny, with a high near 65. North wind 6 to 8 mph.
Saturday Night
Partly cloudy, with a low around 47. Light and variable wind becoming south around 6 mph after midnight.
Sunday
Partly sunny, with a high near 80. South wind 6 to 10 mph.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Monday
Showers likely before 8am. Partly sunny, with a high near 60. Chance of precipitation is 60%.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 52.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Mostly cloudy, with a high near 56.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
Mostly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Washington-Dulles International Airport VA
 38.95°N 77.44°W (Elev. 285 ft)
Last Update:
2:23 pm EDT Mar 20, 2026
Forecast Valid:
2pm EDT Mar 20, 2026-6pm EDT Mar 26, 2026
 
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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