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

42°F

6°C

Humidity 40%
Wind Speed Vrbl 6 mph
Barometer 30.30 in (1026.4 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 1 Dec 3:52 pm EST
Extended Forecast for

2 Miles WSW Great Falls VA

  • Tonight

    Tonight: A chance of snow and sleet between 3am and 5am, then rain likely, possibly mixed with sleet. Mostly cloudy, with a low around 31. Southeast wind 3 to 6 mph. Chance of precipitation is 60%. Total nighttime snow and sleet accumulation of less than a half inch possible.

    Low: 31 °F

    Mostly Cloudy
    then Wintry
    Mix Likely

  • Tuesday

    Tuesday: Rain, snow, and sleet before 2pm, then a chance of rain between 2pm and 4pm. High near 39. Light and variable wind becoming northwest 5 to 10 mph in the morning. Chance of precipitation is 100%. New snow and sleet accumulation of less than a half inch possible.

    High: 39 °F

    Wintry Mix
    then Rain

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27. Northwest wind 9 to 13 mph, with gusts as high as 18 mph.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 40. Northwest wind 5 to 7 mph becoming light and variable in the afternoon.

    High: 40 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 25. Light and variable wind.

    Low: 25 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 34.

    High: 34 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.

    Low: 26 °F

    Chance Snow

Detailed Forecast

Tonight
A chance of snow and sleet between 3am and 5am, then rain likely, possibly mixed with sleet. Mostly cloudy, with a low around 31. Southeast wind 3 to 6 mph. Chance of precipitation is 60%. Total nighttime snow and sleet accumulation of less than a half inch possible.
Tuesday
Rain, snow, and sleet before 2pm, then a chance of rain between 2pm and 4pm. High near 39. Light and variable wind becoming northwest 5 to 10 mph in the morning. Chance of precipitation is 100%. New snow and sleet accumulation of less than a half inch possible.
Tuesday Night
Mostly clear, with a low around 27. Northwest wind 9 to 13 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 40. Northwest wind 5 to 7 mph becoming light and variable in the afternoon.
Wednesday Night
Mostly clear, with a low around 25. Light and variable wind.
Thursday
Partly sunny, with a high near 42.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Mostly cloudy, with a high near 34.
Friday Night
A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 28.
Sunday
Partly sunny, with a high near 42.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Great Falls VA
 39.01°N 77.32°W (Elev. 348 ft)
Last Update:
3:52 pm EST Dec 1, 2025
Forecast Valid:
4pm EST Dec 1, 2025-6pm EST Dec 8, 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