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.

Overcast

45°F

7°C

Humidity 97%
Wind Speed NE 8 mph
Barometer 29.88 in (1011.7 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 10 Jan 5:52 pm EST
Extended Forecast for

McLean VA

  • Tonight

    Tonight: Rain likely, mainly before 8pm. Mostly cloudy, with a low around 38. North wind 5 to 11 mph becoming west in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain Likely
    then Mostly
    Cloudy

  • Sunday

    Sunday: A slight chance of rain and snow showers between 1pm and 4pm. Mostly sunny, with a high near 44. Breezy, with a west wind 11 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.

    High: 44 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29. West wind 14 to 18 mph, with gusts as high as 37 mph.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 45. West wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 45 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30. Southwest wind around 6 mph becoming calm in the evening.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.

    Low: 29 °F

    Chance Rain

Detailed Forecast

Tonight
Rain likely, mainly before 8pm. Mostly cloudy, with a low around 38. North wind 5 to 11 mph becoming west in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A slight chance of rain and snow showers between 1pm and 4pm. Mostly sunny, with a high near 44. Breezy, with a west wind 11 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 29. West wind 14 to 18 mph, with gusts as high as 37 mph.
Monday
Sunny, with a high near 45. West wind 7 to 10 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 30. Southwest wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly cloudy, with a high near 51.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 21.
Friday
Mostly sunny, with a high near 37.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
McLean VA
 38.93°N 77.19°W (Elev. 299 ft)
Last Update:
3:53 pm EST Jan 10, 2026
Forecast Valid:
6pm EST Jan 10, 2026-6pm EST Jan 17, 2026
 
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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