National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Mostly Cloudy

44°F

7°C

Humidity 65%
Wind Speed SW 9 mph
Barometer 29.50 in (998.9 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 10 Dec 7:52 pm EST
Extended Forecast for

Mc Lean VA

  • Tonight

    Tonight: Partly cloudy, with a low around 31. Southwest wind 9 to 13 mph becoming northwest after midnight. Winds could gust as high as 26 mph.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 37. Northwest wind 13 to 15 mph, with gusts as high as 30 mph.

    High: 37 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 26. West wind 5 to 9 mph.

    Low: 26 °F

    Increasing
    Clouds

  • Friday

    Friday: A slight chance of snow. Mostly cloudy, with a high near 37. West wind around 6 mph. Chance of precipitation is 20%.

    High: 37 °F

    Slight Chance
    Snow

  • Friday Night

    Friday Night: A chance of snow, mainly before 1am. Mostly cloudy, with a low around 27. Calm wind. Chance of precipitation is 40%.

    Low: 27 °F

    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of snow after 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 50%.

    Low: 25 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 31. Southwest wind 9 to 13 mph becoming northwest after midnight. Winds could gust as high as 26 mph.
Thursday
Mostly sunny, with a high near 37. Northwest wind 13 to 15 mph, with gusts as high as 30 mph.
Thursday Night
Increasing clouds, with a low around 26. West wind 5 to 9 mph.
Friday
A slight chance of snow. Mostly cloudy, with a high near 37. West wind around 6 mph. Chance of precipitation is 20%.
Friday Night
A chance of snow, mainly before 1am. Mostly cloudy, with a low around 27. Calm wind. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 43.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 50%.
Sunday
Mostly sunny, with a high near 31.
Sunday Night
Mostly clear, with a low around 19.
Monday
Sunny, with a high near 33.
Monday Night
Partly cloudy, with a low around 20.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Partly cloudy, with a low around 25.
Wednesday
Partly sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mc Lean VA
 38.95°N 77.19°W (Elev. 253 ft)
Last Update:
7:43 pm EST Dec 10, 2025
Forecast Valid:
8pm EST Dec 10, 2025-6pm EST Dec 17, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation