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

Heavy to Excessive Rainfall for the Southwest U.S.; Watching for Possible East Coast Storm

Thunderstorms and a chance for some isolated flash flooding will continue today in the Southwest U.S. before an influx of tropical moisture from Priscilla brings widespread heavy rainfall and a flash flooding threat late this week into this weekend. A coastal storm may develop off the southeast U.S. coast Friday night and drift north just off the Mid-Atlantic coast through the weekend. Read More >

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Mostly Cloudy

63°F

17°C

Humidity 81%
Wind Speed N 12 mph
Barometer 30.12 in (1020.0 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 8 Oct 2:52 pm EDT
Extended Forecast for

Mc Lean VA

  • Tonight

    Tonight: Clear, with a low around 47. North wind 9 to 13 mph, with gusts as high as 23 mph.

    Low: 47 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 63. Northeast wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 63 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 40. Northeast wind 3 to 6 mph.

    Low: 40 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 65. Light and variable wind becoming east 5 to 7 mph in the morning.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50. Southeast wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers after 2pm. Mostly cloudy, with a high near 69. Chance of precipitation is 20%.

    High: 69 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers after 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.

    Low: 56 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers. Mostly cloudy, with a high near 63. Chance of precipitation is 50%.

    High: 63 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.

    Low: 52 °F

    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 47. North wind 9 to 13 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 63. Northeast wind 8 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 40. Northeast wind 3 to 6 mph.
Friday
Sunny, with a high near 65. Light and variable wind becoming east 5 to 7 mph in the morning.
Friday Night
Partly cloudy, with a low around 50. Southeast wind around 5 mph becoming calm in the evening.
Saturday
A slight chance of showers after 2pm. Mostly cloudy, with a high near 69. Chance of precipitation is 20%.
Saturday Night
A chance of showers after 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Sunday
A chance of showers. Mostly cloudy, with a high near 63. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Columbus Day
A chance of showers. Partly sunny, with a high near 62. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 68.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
Mostly sunny, with a high near 70.
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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:
3:07 pm EDT Oct 8, 2025
Forecast Valid:
3pm EDT Oct 8, 2025-6pm EDT Oct 15, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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