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

40°F

4°C

Humidity 35%
Wind Speed NW 20 G 32 mph
Barometer 30.18 in (1022.1 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 28 Nov 1:52 pm EST
Extended Forecast for

Reston VA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 41. West wind 16 to 18 mph, with gusts as high as 34 mph.

    High: 41 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 25. West wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 42. West wind around 6 mph becoming calm in the afternoon.

    High: 42 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 30. Calm wind becoming south around 6 mph after midnight.

    Low: 30 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of rain and snow before 10am, then rain likely. Cloudy, with a high near 45. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 45 °F

    Chance
    Rain/Snow
    then Rain
    Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of snow after 1am. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tuesday

    Tuesday: Rain likely. Cloudy, with a high near 38. Chance of precipitation is 70%.

    High: 38 °F

    Rain Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 41. West wind 16 to 18 mph, with gusts as high as 34 mph.
Tonight
Mostly clear, with a low around 25. West wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 42. West wind around 6 mph becoming calm in the afternoon.
Saturday Night
Increasing clouds, with a low around 30. Calm wind becoming south around 6 mph after midnight.
Sunday
A chance of rain and snow before 10am, then rain likely. Cloudy, with a high near 45. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 42.
Monday Night
A chance of snow after 1am. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Tuesday
Rain likely. Cloudy, with a high near 38. Chance of precipitation is 70%.
Tuesday Night
A chance of rain before 1am. Partly cloudy, with a low around 28. Chance of precipitation is 30%.
Wednesday
Sunny, with a high near 40.
Wednesday Night
Partly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Reston VA
 38.94°N 77.33°W (Elev. 390 ft)
Last Update:
12:53 pm EST Nov 28, 2025
Forecast Valid:
2pm EST Nov 28, 2025-6pm EST Dec 4, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation