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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Fog/Mist

64°F

18°C

Humidity 93%
Wind Speed NE 6 mph
Barometer 30.10 in (1019.3 mb)
Dewpoint 62°F (17°C)
Visibility 1.00 mi
Last update 4 Oct 2:52 pm EDT
Extended Forecast for

Mc Lean VA

  • Tonight

    Tonight: Patchy fog. Otherwise, cloudy, with a low around 56. Light and variable wind.

    Low: 56 °F

    Patchy Fog

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 70. Northwest wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 70 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 46. Northwest wind 5 to 7 mph.

    Low: 46 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65. Northwest wind 3 to 5 mph.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 45. Calm wind.

    Low: 45 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 53.

    Low: 53 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog. Otherwise, cloudy, with a low around 56. Light and variable wind.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 70. Northwest wind 6 to 11 mph, with gusts as high as 22 mph.
Monday Night
Clear, with a low around 46. Northwest wind 5 to 7 mph.
Tuesday
Sunny, with a high near 65. Northwest wind 3 to 5 mph.
Tuesday Night
Clear, with a low around 45. Calm wind.
Wednesday
Sunny, with a high near 71.
Wednesday Night
Clear, with a low around 53.
Thursday
Sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 53.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
A chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mc Lean VA
 38.95°N 77.19°W (Elev. 253 ft)
Last Update:
2:23 pm EDT Oct 4, 2026
Forecast Valid:
3pm EDT Oct 4, 2026-6pm EDT Oct 11, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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