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.

A Few Clouds

76°F

24°C

Humidity 33%
Wind Speed S 13 G 22 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 9 Mar 2:52 pm EDT
Extended Forecast for

Mc Lean VA

  • Tonight

    Tonight: Mostly clear, with a low around 49. Southwest wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Calm wind becoming south around 6 mph in the afternoon.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. South wind 3 to 5 mph.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 79. South wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 79 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am, then rain likely after 2am. Mostly cloudy, with a low around 45. South wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

    Low: 45 °F

    Chance
    Showers then
    Rain Likely

  • Thursday

    Thursday: Rain likely, mainly before 2pm. Mostly cloudy, with a high near 55. Chance of precipitation is 70%.

    High: 55 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A chance of rain before 8pm. Partly cloudy, with a low around 32. Chance of precipitation is 30%.

    Low: 32 °F

    Chance Rain
    then Mostly
    Clear

  • Friday

    Friday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 49. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 78. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 61. South wind 3 to 5 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 79. South wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am, then rain likely after 2am. Mostly cloudy, with a low around 45. South wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Thursday
Rain likely, mainly before 2pm. Mostly cloudy, with a high near 55. Chance of precipitation is 70%.
Thursday Night
A chance of rain before 8pm. Partly cloudy, with a low around 32. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 54.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Partly sunny, with a high near 58.
Saturday Night
Mostly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 68.
Sunday Night
Rain likely. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Monday
Rain likely. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
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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:
1:53 pm EDT Mar 9, 2026
Forecast Valid:
3pm EDT Mar 9, 2026-6pm EDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation