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.

Overcast

26°F

-3°C

Humidity 32%
Wind Speed NE 8 mph
Barometer 30.31 in (1026.6 mb)
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 8 Dec 8:52 pm EST
Extended Forecast for

Reston VA

  • Tonight

    Tonight: Cloudy early, then gradual clearing, with a low around 17. North wind around 6 mph becoming calm after midnight.

    Low: 17 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: Sunny, with a high near 35. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 35 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 29. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 29 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain after 1pm. Mostly cloudy, with a high near 46. South wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 46 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.

    Low: 26 °F

    Chance Snow

Detailed Forecast

Tonight
Cloudy early, then gradual clearing, with a low around 17. North wind around 6 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 35. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.
Tuesday Night
Mostly cloudy, with a low around 29. South wind around 10 mph, with gusts as high as 20 mph.
Wednesday
A slight chance of rain after 1pm. Mostly cloudy, with a high near 46. South wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 32. Southwest wind around 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 41.
Thursday Night
Mostly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 39.
Friday Night
A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 37.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
Mostly sunny, with a high near 33.
Sunday Night
Mostly clear, with a low around 19.
Monday
Mostly sunny, with a high near 34.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Reston VA
 38.97°N 77.36°W (Elev. 430 ft)
Last Update:
7:02 pm EST Dec 8, 2025
Forecast Valid:
9pm EST Dec 8, 2025-6pm EST Dec 15, 2025
 
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Additional Resources

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Chance of Precipitation