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

51°F

11°C

Humidity 26%
Wind Speed Vrbl 6 mph
Barometer 30.34 in (1027.5 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 24 Mar 4:52 pm EDT
Extended Forecast for

3 Miles NNW Mc Lean VA

  • Tonight

    Tonight: Increasing clouds, with a low around 38. Calm wind becoming south around 5 mph after midnight.

    Low: 38 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 59. South wind 5 to 8 mph.

    High: 59 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49. South wind around 8 mph.

    Low: 49 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 74. South wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 74 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 55. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    Low: 55 °F

    Slight Chance
    Rain then
    Rain Likely

  • Friday

    Friday: Rain likely. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.

    High: 63 °F

    Rain Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 38. Calm wind becoming south around 5 mph after midnight.
Wednesday
Partly sunny, with a high near 59. South wind 5 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 49. South wind around 8 mph.
Thursday
Partly sunny, with a high near 74. South wind 8 to 11 mph, with gusts as high as 21 mph.
Thursday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 55. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Friday
Rain likely. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.
Friday Night
Mostly cloudy, with a low around 31.
Saturday
Sunny, with a high near 50.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 66.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Partly sunny, with a high near 67.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Mc Lean VA
 38.98°N 77.24°W (Elev. 98 ft)
Last Update:
4:53 pm EDT Mar 24, 2026
Forecast Valid:
5pm EDT Mar 24, 2026-6pm EDT Mar 31, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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