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

Flooding Threat Along the Gulf Coast, Southern Rockies and High Plains; Cooler Weather in the Central and Eastern U.S.

Strong thunderstorms may bring excessive rainfall and flooding over parts of the northern Gulf Coast today and over parts of the southern Rockies into the High Plains today through the weekend. A refreshingly cool and dry air mass will continue to produce below average temperatures across the central and eastern U.S. through the weekend. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

77°F

25°C

Humidity 33%
Wind Speed NE 10 mph
Barometer 30.21 in (1022.9 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 31 Aug 1:52 pm EDT
Extended Forecast for

2 Miles SW Great Falls VA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 77. Northeast wind around 7 mph.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. Northeast wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 78. North wind 5 to 7 mph becoming northeast in the afternoon.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. East wind around 6 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 77. Northeast wind around 7 mph.
Tonight
Mostly clear, with a low around 53. Northeast wind around 5 mph becoming calm in the evening.
Labor Day
Sunny, with a high near 78. North wind 5 to 7 mph becoming northeast in the afternoon.
Monday Night
Mostly clear, with a low around 56. East wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 78. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Partly sunny, with a high near 76.
Wednesday Night
Mostly cloudy, with a low around 61.
Thursday
A chance of showers after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Friday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Friday Night
A chance of showers. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Great Falls VA
 38.99°N 77.32°W (Elev. 351 ft)
Last Update:
1:30 pm EDT Aug 31, 2025
Forecast Valid:
2pm EDT Aug 31, 2025-6pm EDT Sep 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