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.

Mostly Cloudy and Breezy

64°F

18°C

Humidity 60%
Wind Speed NW 22 G 38 mph
Barometer 29.85 in (1010.5 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 23 Mar 11:52 am EDT
Extended Forecast for

Great Falls VA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 58. Northwest wind 15 to 17 mph, with gusts as high as 32 mph.

    High: 58 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 32. Northwest wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 32 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 51. North wind 5 to 7 mph becoming calm in the afternoon.

    High: 51 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37. Calm wind becoming south around 5 mph after midnight.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 60. South wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 60 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of rain after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.

    High: 62 °F

    Rain Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 58. Northwest wind 15 to 17 mph, with gusts as high as 32 mph.
Tonight
Mostly clear, with a low around 32. Northwest wind 10 to 14 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 51. North wind 5 to 7 mph becoming calm in the afternoon.
Tuesday Night
Partly cloudy, with a low around 37. Calm wind becoming south around 5 mph after midnight.
Wednesday
Partly sunny, with a high near 60. South wind 6 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 49.
Thursday
Partly sunny, with a high near 73.
Thursday Night
A chance of rain after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.
Friday
Rain likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.
Friday Night
A chance of rain before 2am. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 48.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 57.
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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:
11:19 am EDT Mar 23, 2026
Forecast Valid:
12pm EDT Mar 23, 2026-6pm EDT Mar 29, 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