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.

Partly Cloudy

31°F

-1°C

Humidity 96%
Wind Speed SW 5 mph
Barometer 29.99 in (1016.0 mb)
Dewpoint 30°F (-1°C)
Visibility 8.00 mi
Wind Chill26°F (-3°C)
Last update 6 Dec 7:52 pm EST
Extended Forecast for

Great Falls VA

  • Tonight

    Tonight: Partly cloudy, with a low around 27. Light northwest wind.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 42. Calm wind becoming south around 6 mph in the afternoon.

    High: 42 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 26. Light and variable wind becoming north 5 to 10 mph after midnight.

    Low: 26 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 33. North wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 33 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 16. North wind around 6 mph becoming calm in the evening.

    Low: 16 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 27. Light northwest wind.
Sunday
Partly sunny, with a high near 42. Calm wind becoming south around 6 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 26. Light and variable wind becoming north 5 to 10 mph after midnight.
Monday
Partly sunny, with a high near 33. North wind 9 to 11 mph, with gusts as high as 21 mph.
Monday Night
Partly cloudy, with a low around 16. North wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Mostly cloudy, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Partly sunny, with a high near 46.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 41.
Friday Night
Partly cloudy, with a low around 22.
Saturday
Mostly sunny, with a high near 31.
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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:
6:52 pm EST Dec 6, 2025
Forecast Valid:
8pm EST Dec 6, 2025-6pm EST Dec 13, 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