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.

Fog/Mist

30°F

-1°C

Humidity 96%
Wind Speed Calm
Barometer 30.08 in (1018.8 mb)
Dewpoint 29°F (-2°C)
Visibility 6.00 mi
Last update 7 Dec 11:52 pm EST
Extended Forecast for

3 Miles SE Great Falls VA

  • Overnight

    Overnight: Cloudy, with a low around 26. North wind 5 to 8 mph.

    Low: 26 °F

    Cloudy

  • Monday

    Monday: A chance of snow, mainly between 8am and noon. Cloudy, with a high near 31. Northeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 31 °F

    Chance Snow

  • Monday Night

    Monday Night: Cloudy during the early evening, then gradual clearing, with a low around 17. North wind around 6 mph becoming calm in the evening.

    Low: 17 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: Mostly sunny, with a high near 36. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 36 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 29. South wind around 9 mph, with gusts as high as 18 mph.

    Low: 29 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain after 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 20%.

    High: 47 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 26. North wind 5 to 8 mph.
Monday
A chance of snow, mainly between 8am and noon. Cloudy, with a high near 31. Northeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Monday Night
Cloudy during the early evening, then gradual clearing, with a low around 17. North wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 36. Calm wind becoming south 5 to 9 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 29. South wind around 9 mph, with gusts as high as 18 mph.
Wednesday
A slight chance of rain after 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 41.
Thursday Night
Mostly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 40.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 33.
Saturday Night
Partly cloudy, with a low around 19.
Sunday
Mostly sunny, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Great Falls VA
 38.98°N 77.27°W (Elev. 266 ft)
Last Update:
10:59 pm EST Dec 7, 2025
Forecast Valid:
12am EST Dec 8, 2025-6pm EST Dec 14, 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