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

87°F

31°C

Humidity 51%
Wind Speed W 10 mph
Barometer 29.94 in (1013.3 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 13 Aug 1:52 pm EDT
Extended Forecast for

Sterling VA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 89. Northwest wind around 7 mph.

    High: 89 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 70. Light north wind.

    Low: 70 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 84. Light north wind. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: Mostly sunny, with a high near 86. Northeast wind around 6 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 20%.

    Low: 69 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly after 8am. Partly sunny, with a high near 89. Chance of precipitation is 40%.

    High: 89 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 73. Chance of precipitation is 50%.

    Low: 73 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 30%.

    High: 88 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 89. Northwest wind around 7 mph.
Tonight
Mostly cloudy, with a low around 70. Light north wind.
Friday
A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 84. Light north wind. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 86. Northeast wind around 6 mph.
Saturday Night
A slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 20%.
Sunday
A chance of showers and thunderstorms, mainly after 8am. Partly sunny, with a high near 89. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 73. Chance of precipitation is 50%.
Monday
A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
A slight chance of showers. Sunny, with a high near 88. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sterling VA
 39.02°N 77.4°W (Elev. 338 ft)
Last Update:
10:53 am EDT Aug 13, 2026
Forecast Valid:
2pm EDT Aug 13, 2026-6pm EDT Aug 19, 2026
 
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Additional Resources

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Chance of Precipitation