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.

A Few Clouds

37°F

3°C

Humidity 46%
Wind Speed NW 8 mph
Barometer 29.78 in (1008.9 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 2 Jan 3:52 pm EST
Extended Forecast for

3 Miles NNW Mc Lean VA

  • Tonight

    Tonight: Increasing clouds, with a low around 25. Northwest wind around 6 mph.

    Low: 25 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, with a high near 35. Calm wind.

    High: 35 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A slight chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 26. Calm wind. Chance of precipitation is 20%.

    Low: 26 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: Sunny, with a high near 39. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 39 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 23. Northwest wind around 6 mph becoming calm after midnight.

    Low: 23 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 25. Northwest wind around 6 mph.
Saturday
Mostly cloudy, with a high near 35. Calm wind.
Saturday Night
A slight chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 26. Calm wind. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 39. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 23. Northwest wind around 6 mph becoming calm after midnight.
Monday
Mostly cloudy, with a high near 39.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
Mostly cloudy, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly cloudy, with a high near 57.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Mostly cloudy, with a high near 54.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 44. Chance of precipitation is 30%.
Friday
A chance of rain. Mostly cloudy, with a high near 60. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Mc Lean VA
 38.98°N 77.24°W (Elev. 98 ft)
Last Update:
3:53 pm EST Jan 2, 2026
Forecast Valid:
4pm EST Jan 2, 2026-6pm EST Jan 9, 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