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.

Partly Cloudy

26°C

79°F

Humidity 41%
Wind Speed NW 26 G 43 km/h
Barometer 1013.7 mb (29.94 in)
Dewpoint 12°C (53°F)
Visibility 16 km
Heat Index26°C (79°F)
Last update 17 Apr 11:52 am EDT
Extended Forecast for

Mc Lean VA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 28. Northwest wind 13 to 16 km/h, with gusts as high as 32 km/h.

    High: 28 °C

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 16. Northeast wind 3 to 8 km/h.

    Low: 16 °C

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 29. East wind 10 to 16 km/h, with gusts as high as 29 km/h.

    High: 29 °C

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers likely, mainly after 2am. Increasing clouds, with a low around 12. Southeast wind 11 to 18 km/h, with gusts as high as 35 km/h. Chance of precipitation is 60%. New precipitation amounts between 1 and 2.5 mm possible.

    Low: 12 °C

    Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers, mainly before 2pm. High near 16. Northwest wind 23 to 27 km/h, with gusts as high as 50 km/h. Chance of precipitation is 80%.

    High: 16 °C

    Showers

  • Sunday Night

    Sunday Night: A chance of showers, mainly before 8pm. Partly cloudy, with a low around 5. Chance of precipitation is 30%.

    Low: 5 °C

    Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 13.

    High: 13 °C

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 2.

    Low: 2 °C

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 18.

    High: 18 °C

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 28. Northwest wind 13 to 16 km/h, with gusts as high as 32 km/h.
Tonight
Mostly clear, with a low around 16. Northeast wind 3 to 8 km/h.
Saturday
Mostly sunny, with a high near 29. East wind 10 to 16 km/h, with gusts as high as 29 km/h.
Saturday Night
Showers likely, mainly after 2am. Increasing clouds, with a low around 12. Southeast wind 11 to 18 km/h, with gusts as high as 35 km/h. Chance of precipitation is 60%. New precipitation amounts between 1 and 2.5 mm possible.
Sunday
Showers, mainly before 2pm. High near 16. Northwest wind 23 to 27 km/h, with gusts as high as 50 km/h. Chance of precipitation is 80%.
Sunday Night
A chance of showers, mainly before 8pm. Partly cloudy, with a low around 5. Chance of precipitation is 30%.
Monday
Sunny, with a high near 13.
Monday Night
Mostly clear, with a low around 2.
Tuesday
Sunny, with a high near 18.
Tuesday Night
Partly cloudy, with a low around 11.
Wednesday
Mostly sunny, with a high near 25.
Wednesday Night
Partly cloudy, with a low around 12.
Thursday
Sunny, with a high near 26.
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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 m)
Last Update:
11:42 am EDT Apr 17, 2026
Forecast Valid:
12pm EDT Apr 17, 2026-6pm EDT Apr 23, 2026
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation