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.

Fair

72°F

22°C

Humidity 71%
Wind Speed N 7 mph
Barometer 29.92 in (1013.2 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 19 Aug 4:52 am EDT
Extended Forecast for

McLean VA

  • Today

    Today: Sunny, with a high near 89. West wind 3 to 6 mph.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 85. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 67. Light north wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 84. North wind around 6 mph becoming east in the afternoon. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.

    Low: 68 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 50%.

    High: 84 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%.

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 89. West wind 3 to 6 mph.
Tonight
Partly cloudy, with a low around 72. Calm wind.
Thursday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 85. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 67. Light north wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 84. North wind around 6 mph becoming east in the afternoon. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Saturday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Sunday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 66.
Tuesday
Sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
McLean VA
 38.93°N 77.19°W (Elev. 299 ft)
Last Update:
5:22 am EDT Aug 19, 2026
Forecast Valid:
5am EDT Aug 19, 2026-6pm EDT Aug 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation