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

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

39°F

4°C

Humidity 79%
Wind Speed N 10 mph
Barometer 29.79 in (1008.8 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 2 Dec 5:52 pm EST
Extended Forecast for

Great Falls VA

  • Tonight

    Tonight: Mostly clear, with a low around 27. Northwest wind around 11 mph, with gusts as high as 23 mph.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 41. Northwest wind 5 to 9 mph becoming light west in the afternoon. Winds could gust as high as 18 mph.

    High: 41 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 25. Calm wind.

    Low: 25 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 41. Light northwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 41 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 19. Northwest wind 5 to 9 mph becoming calm after midnight.

    Low: 19 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow after 1pm. Partly sunny, with a high near 34. Chance of precipitation is 30%.

    High: 34 °F

    Partly Sunny
    then Chance
    Snow

  • Friday Night

    Friday Night: A chance of snow and freezing rain before 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.

    Low: 24 °F

    Chance Wintry
    Mix

  • Saturday

    Saturday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 27. Northwest wind around 11 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 41. Northwest wind 5 to 9 mph becoming light west in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 25. Calm wind.
Thursday
Partly sunny, with a high near 41. Light northwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 19. Northwest wind 5 to 9 mph becoming calm after midnight.
Friday
A chance of snow after 1pm. Partly sunny, with a high near 34. Chance of precipitation is 30%.
Friday Night
A chance of snow and freezing rain before 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
Partly sunny, with a high near 40.
Sunday Night
Mostly cloudy, with a low around 25.
Monday
Partly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Partly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Great Falls VA
 39.01°N 77.29°W (Elev. 348 ft)
Last Update:
3:52 pm EST Dec 2, 2025
Forecast Valid:
6pm EST Dec 2, 2025-6pm EST Dec 9, 2025
 
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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