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.

A Few Clouds

42°F

6°C

Humidity 58%
Wind Speed NW 10 mph
Barometer 29.95 in (1014.1 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 11 Jan 8:52 am EST
Extended Forecast for

Great Falls VA

  • Today

    Today: A chance of rain and snow showers between noon and 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 45. Breezy, with a west wind 6 to 11 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 50%.

    High: 45 °F

    Mostly Sunny
    then Chance
    Rain/Snow and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 28. Northwest wind 10 to 18 mph, with gusts as high as 38 mph.

    Low: 28 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 45. West wind 6 to 8 mph becoming southwest in the afternoon.

    High: 45 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29. Southwest wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 51.

    High: 51 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.

    Low: 32 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: A chance of rain before 1pm. Partly sunny, with a high near 38. Chance of precipitation is 30%.

    High: 38 °F

    Chance Rain

Detailed Forecast

Today
A chance of rain and snow showers between noon and 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 45. Breezy, with a west wind 6 to 11 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 50%.
Tonight
Mostly clear, with a low around 28. Northwest wind 10 to 18 mph, with gusts as high as 38 mph.
Monday
Sunny, with a high near 45. West wind 6 to 8 mph becoming southwest in the afternoon.
Monday Night
Partly cloudy, with a low around 29. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 49. Calm wind becoming south 5 to 9 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Cloudy, with a high near 51.
Wednesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Thursday
A chance of rain before 1pm. Partly sunny, with a high near 38. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Partly sunny, with a high near 35.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Mostly sunny, with a high near 39.
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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:
6:53 am EST Jan 11, 2026
Forecast Valid:
8am EST Jan 11, 2026-6pm EST Jan 17, 2026
 
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