Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

50°F

10°C

Humidity 36%
Wind Speed S 13 mph
Barometer 29.78 in (1008.7 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 13 Jan 7:52 pm EST
Extended Forecast for

Great Falls VA

  • Tonight

    Tonight: Mostly cloudy, with a low around 41. Southwest wind 7 to 13 mph, with gusts as high as 23 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain before 11am, then a chance of rain after 3pm.  Cloudy, with a high near 51. Southwest wind around 6 mph.  Chance of precipitation is 30%.

    High: 51 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain and snow likely before 1am, then a chance of rain between 1am and 4am, then a slight chance of snow after 4am.  Mostly cloudy, with a low around 24. Light and variable wind becoming northwest 6 to 11 mph in the evening. Winds could gust as high as 29 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 24 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 30. Northwest wind 14 to 17 mph, with gusts as high as 31 mph.

    High: 30 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 17. Northwest wind 7 to 13 mph, with gusts as high as 22 mph.

    Low: 17 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 41. Southwest wind 7 to 13 mph, with gusts as high as 23 mph.
Wednesday
A slight chance of rain before 11am, then a chance of rain after 3pm. Cloudy, with a high near 51. Southwest wind around 6 mph. Chance of precipitation is 30%.
Wednesday Night
Rain and snow likely before 1am, then a chance of rain between 1am and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 24. Light and variable wind becoming northwest 6 to 11 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
Mostly sunny, with a high near 30. Northwest wind 14 to 17 mph, with gusts as high as 31 mph.
Thursday Night
Mostly clear, with a low around 17. Northwest wind 7 to 13 mph, with gusts as high as 22 mph.
Friday
Mostly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
Mostly sunny, with a high near 31.
Sunday Night
Partly cloudy, with a low around 17.
M.L.King Day
Mostly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Sunny, with a high near 28.
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ABOUT THIS FORECAST

 
Point Forecast:
Great Falls VA
 39.01°N 77.29°W (Elev. 348 ft)
6:53 pm EST Jan 13, 2026
7pm EST Jan 13, 2026-6pm EST Jan 20, 2026
 
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Additional Resources

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Hourly Weather Forecast

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