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

42°F

6°C

Humidity 49%
Wind Speed W 9 mph
Barometer 30.07 in (1018.5 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 3 Dec 1:52 pm EST
Extended Forecast for

Reston VA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 42. West wind 3 to 5 mph.

    High: 42 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 26. Light and variable wind.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 42. Light northwest wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 25 mph.

    High: 42 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 21. Northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.

    Low: 21 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow. Cloudy, with a high near 34. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 50%.

    High: 34 °F

    Chance Snow

  • Friday Night

    Friday Night: A chance of snow before 10pm, then a chance of snow and freezing rain between 10pm and 1am, then a slight chance of freezing rain after 1am. Cloudy, with a low around 24. Chance of precipitation is 30%.

    Low: 24 °F

    Chance Wintry
    Mix

  • Saturday

    Saturday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 42. West wind 3 to 5 mph.
Tonight
Partly cloudy, with a low around 26. Light and variable wind.
Thursday
Partly sunny, with a high near 42. Light northwest wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 21. Northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.
Friday
A chance of snow. Cloudy, with a high near 34. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 50%.
Friday Night
A chance of snow before 10pm, then a chance of snow and freezing rain between 10pm and 1am, then a slight chance of freezing rain after 1am. Cloudy, with a low around 24. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 28.
Sunday
Partly sunny, with a high near 42.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
Partly sunny, with a high near 36.
Monday Night
Partly cloudy, with a low around 21.
Tuesday
Partly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Reston VA
 38.94°N 77.33°W (Elev. 390 ft)
Last Update:
12:52 pm EST Dec 3, 2025
Forecast Valid:
2pm EST Dec 3, 2025-6pm EST Dec 9, 2025
 
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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