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.

Light Rain

60°F

16°C

Humidity 86%
Wind Speed NW 6 mph
Barometer 29.69 in (1005.2 mb)
Dewpoint 56°F (13°C)
Visibility 7.00 mi
Last update 23 Mar 5:52 am EDT
Extended Forecast for

Great Falls VA

  • Today

    Today: Showers, mainly before 10am. High near 58. Northwest wind 8 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Showers then
    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 31. Northwest wind 10 to 15 mph, with gusts as high as 26 mph.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 51. North wind around 6 mph becoming calm in the morning.

    High: 51 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 61. South wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 61 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 71.

    High: 71 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of rain after 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 50%.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: A chance of rain. Mostly cloudy, with a high near 62. Chance of precipitation is 50%.

    High: 62 °F

    Chance Rain

Detailed Forecast

Today
Showers, mainly before 10am. High near 58. Northwest wind 8 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Partly cloudy, with a low around 31. Northwest wind 10 to 15 mph, with gusts as high as 26 mph.
Tuesday
Mostly sunny, with a high near 51. North wind around 6 mph becoming calm in the morning.
Tuesday Night
Mostly cloudy, with a low around 37. Calm wind becoming south around 5 mph after midnight.
Wednesday
Mostly sunny, with a high near 61. South wind 6 to 10 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly cloudy, with a low around 46.
Thursday
Mostly cloudy, with a high near 71.
Thursday Night
A chance of rain after 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 50%.
Friday
A chance of rain. Mostly cloudy, with a high near 62. Chance of precipitation is 50%.
Friday Night
Partly cloudy, with a low around 31.
Saturday
Sunny, with a high near 49.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 55.
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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:
4:53 am EDT Mar 23, 2026
Forecast Valid:
6am 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