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.

Overcast

64°F

18°C

Humidity 81%
Wind Speed NE 6 mph
Barometer 30.24 in (1024.0 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 3 Oct 11:52 pm EDT
Extended Forecast for

Mc Lean VA

  • Overnight

    Overnight: A chance of showers, mainly after 1am. Mostly cloudy, with a low around 58. Light northeast wind. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly before 11am. Cloudy, with a high near 65. East wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Cloudy

  • Monday

    Monday: Mostly cloudy through mid morning, then clearing, with a high near 70. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 70 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 47. North wind around 7 mph.

    Low: 47 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers, mainly after 1am. Mostly cloudy, with a low around 58. Light northeast wind. Chance of precipitation is 30%.
Sunday
Showers likely, mainly before 11am. Cloudy, with a high near 65. East wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Cloudy, with a low around 58. Calm wind.
Monday
Mostly cloudy through mid morning, then clearing, with a high near 70. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.
Monday Night
Clear, with a low around 47. North wind around 7 mph.
Tuesday
Sunny, with a high near 64.
Tuesday Night
Clear, with a low around 46.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 53.
Friday
Mostly sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mc Lean VA
 38.95°N 77.19°W (Elev. 253 ft)
Last Update:
10:52 pm EDT Oct 3, 2026
Forecast Valid:
12am EDT Oct 4, 2026-6pm EDT Oct 10, 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