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

Severe Thunderstorms and Excessive Rainfall over the Southern U.S.; Pacific Storm to Impact Hawaii

A storm system will produce severe thunderstorms over and near Louisiana, and heavy to excessive rainfall from the Southern Plains through the Ohio River Valley today. A strong weather system will bring the potential for flash flooding, severe thunderstorms, strong to locally damaging non-thunderstorm winds, and high elevation snow to the Hawaiian Islands through Friday. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

53°F

12°C

Humidity 27%
Wind Speed S 10 mph
Barometer 30.16 in (1021.4 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 30 Jan 3:52 pm EST
Extended Forecast for

Great Falls VA

  • Tonight

    Tonight: Rain, mainly after 10pm. Low around 41. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Chance Rain
    then Rain

  • Friday

    Friday: Rain. High near 54. South wind 10 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 54 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 40. Southwest wind 7 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

    Low: 40 °F

    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 48. North wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. Northeast wind around 5 mph becoming light and variable after midnight.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 45.

    High: 45 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Rain, mainly after 10pm. Low around 41. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain. High near 54. South wind 10 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday Night
A chance of rain before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 40. Southwest wind 7 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 48. North wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 27. Northeast wind around 5 mph becoming light and variable after midnight.
Sunday
Mostly cloudy, with a high near 45.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Mostly cloudy, with a high near 59.
Monday Night
Mostly cloudy, with a low around 37.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
A chance of rain. Mostly cloudy, with a high near 49. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 42. Chance of precipitation is 50%.
Thursday
Rain likely. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Great Falls VA
 39.01°N 77.29°W (Elev. 348 ft)
Last Update:
3:30 pm EST Jan 30, 2025
Forecast Valid:
4pm EST Jan 30, 2025-6pm EST Feb 6, 2025
 
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