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.

Mostly Cloudy

55°F

13°C

Humidity 53%
Wind Speed S 9 mph
Barometer 30.22 in (1023.4 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 8 Jan 12:52 pm EST
Extended Forecast for

3 Miles NNW Mc Lean VA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 54. Light south wind.

    High: 54 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. Southeast wind 3 to 5 mph.

    Low: 38 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of rain, mainly after 3pm. Increasing clouds, with a high near 56. South wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    High: 56 °F

    Partly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: Rain likely, mainly after 1am. Cloudy, with a low around 48. Southwest wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Rain Likely

  • Saturday

    Saturday: Rain. High near 56. Light and variable wind becoming east 5 to 7 mph in the morning. Chance of precipitation is 100%.

    High: 56 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 1am. Cloudy, with a low around 42. Chance of precipitation is 70%.

    Low: 42 °F

    Rain Likely

  • Sunday

    Sunday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 54. Light south wind.
Tonight
Mostly cloudy, with a low around 38. Southeast wind 3 to 5 mph.
Friday
A chance of rain, mainly after 3pm. Increasing clouds, with a high near 56. South wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Friday Night
Rain likely, mainly after 1am. Cloudy, with a low around 48. Southwest wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. High near 56. Light and variable wind becoming east 5 to 7 mph in the morning. Chance of precipitation is 100%.
Saturday Night
Rain likely, mainly before 1am. Cloudy, with a low around 42. Chance of precipitation is 70%.
Sunday
Partly sunny, with a high near 48.
Sunday Night
Mostly clear, with a low around 29.
Monday
Sunny, with a high near 43.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 48.
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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:
12:53 pm EST Jan 8, 2026
Forecast Valid:
1pm EST Jan 8, 2026-6pm EST Jan 14, 2026
 
Forecast Discussion
 
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Additional Resources

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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