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

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

30°F

-1°C

Humidity 36%
Wind Speed S 10 mph
Barometer 30.01 in (1016.5 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 16 Jan 12:52 pm EST
Extended Forecast for

Great Falls VA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 35. South wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 35 °F

    Partly Sunny

  • Tonight

    Tonight: Scattered snow showers before 3am, then scattered snow showers after 4am. Increasing clouds, with a low around 31. South wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Mostly Cloudy
    then
    Scattered
    Snow Showers

  • Saturday

    Saturday: Scattered snow showers before 9am, then scattered rain showers between 9am and noon. Mostly cloudy, with a high near 46. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 46 °F

    Scattered
    Rain/Snow
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: A chance of snow after 1am. Mostly cloudy, with a low around 30. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 30%.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: A chance of snow, mainly before 1pm. Mostly cloudy, with a high near 34. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 34 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 38.

    High: 38 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 12.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 26.

    High: 26 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 35. South wind 8 to 10 mph, with gusts as high as 18 mph.
Tonight
Scattered snow showers before 3am, then scattered snow showers after 4am. Increasing clouds, with a low around 31. South wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Saturday
Scattered snow showers before 9am, then scattered rain showers between 9am and noon. Mostly cloudy, with a high near 46. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 30. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 30%.
Sunday
A chance of snow, mainly before 1pm. Mostly cloudy, with a high near 34. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 19.
M.L.King Day
Sunny, with a high near 38.
Monday Night
Mostly clear, with a low around 12.
Tuesday
Sunny, with a high near 26.
Tuesday Night
Mostly clear, with a low around 13.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Great Falls VA
 39.01°N 77.29°W (Elev. 348 ft)
Last Update:
12:54 pm EST Jan 16, 2026
Forecast Valid:
1pm EST Jan 16, 2026-6pm EST Jan 22, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation