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.

A Few Clouds

70°F

21°C

Humidity 73%
Wind Speed E 5 mph
Barometer 30.03 in (1016.6 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 19 Sep 8:52 pm EDT
Extended Forecast for

Sterling VASimilar City Names

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Calm wind becoming northeast around 5 mph after midnight.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 79. East wind around 6 mph.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 62. East wind around 6 mph.

    Low: 62 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 77. East wind 5 to 7 mph.

    High: 77 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60. Southeast wind 3 to 6 mph.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 40%.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 61. Calm wind becoming northeast around 5 mph after midnight.
Saturday
Mostly sunny, with a high near 79. East wind around 6 mph.
Saturday Night
Increasing clouds, with a low around 62. East wind around 6 mph.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 77. East wind 5 to 7 mph.
Sunday Night
Partly cloudy, with a low around 60. Southeast wind 3 to 6 mph.
Monday
Partly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Thursday
A chance of showers. Mostly sunny, with a high near 75. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sterling VASimilar City Names
 38.99°N 77.41°W (Elev. 325 ft)
Last Update:
7:30 pm EDT Sep 19, 2025
Forecast Valid:
9pm EDT Sep 19, 2025-6pm EDT Sep 26, 2025
 
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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