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

Hazardous Weather Conditions

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Mostly Cloudy

86°F

30°C

Humidity 65%
Wind Speed N 6 mph
Barometer 29.96 in (1014.5 mb)
Dewpoint 73°F (23°C)
Visibility 8.00 mi
Heat Index93°F (34°C)
Last update 16 Jul 8:52 am EDT
Extended Forecast for

Mc Lean VA

  • Today

    Today: Areas of smoke before noon. Mostly sunny and hot, with a high near 97. Heat index values as high as 101. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 97 °F

    Areas Smoke
    then Mostly
    Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 10pm. Patchy smoke after 11pm. Mostly clear, with a low around 75. West wind around 5 mph becoming light and variable. Chance of precipitation is 20%.

    Low: 75 °F

    Slight Chance
    T-storms then
    Areas Smoke

  • Friday

    Friday: Areas of smoke. Mostly sunny, with a high near 93. Light north wind.

    High: 93 °F

    Areas Smoke

  • Friday Night

    Friday Night: A chance of showers and thunderstorms after 2am. Areas of smoke. Increasing clouds, with a low around 76. South wind 3 to 5 mph. Chance of precipitation is 40%.

    Low: 76 °F

    Areas Smoke
    then Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 92. Light south wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 90%.

    High: 92 °F

    Chance
    T-storms then
    T-storms

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 73. Chance of precipitation is 80%.

    Low: 73 °F

    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 8am. Partly sunny, with a high near 87. Chance of precipitation is 30%.

    High: 87 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Today
Areas of smoke before noon. Mostly sunny and hot, with a high near 97. Heat index values as high as 101. Calm wind becoming west 5 to 7 mph in the afternoon.
Tonight
A slight chance of showers and thunderstorms before 10pm. Patchy smoke after 11pm. Mostly clear, with a low around 75. West wind around 5 mph becoming light and variable. Chance of precipitation is 20%.
Friday
Areas of smoke. Mostly sunny, with a high near 93. Light north wind.
Friday Night
A chance of showers and thunderstorms after 2am. Areas of smoke. Increasing clouds, with a low around 76. South wind 3 to 5 mph. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 92. Light south wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 73. Chance of precipitation is 80%.
Sunday
A chance of showers, with thunderstorms also possible after 8am. Partly sunny, with a high near 87. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 68.
Monday
Sunny, with a high near 87.
Monday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 70. Chance of precipitation is 20%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 40%.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mc Lean VA
 38.95°N 77.19°W (Elev. 253 ft)
Last Update:
9:33 am EDT Jul 16, 2026
Forecast Valid:
9am EDT Jul 16, 2026-6pm EDT Jul 22, 2026
 
Forecast Discussion
 
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Additional Resources

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