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.

Partly Cloudy

41°F

5°C

Humidity 43%
Wind Speed Vrbl 3 mph
Barometer 30.48 in (1032.1 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 24 Mar 10:52 am EDT
Extended Forecast for

3 Miles NNW Mc Lean VA

  • Today

    Today: Sunny, with a high near 52. North wind around 5 mph becoming calm in the afternoon.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 38. Light south wind.

    Low: 38 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 59. South wind 5 to 9 mph.

    High: 59 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 48. South wind around 7 mph.

    Low: 48 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 73. South wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 73 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of rain, then rain likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Chance Rain
    then Rain
    Likely

  • Friday

    Friday: Rain likely, mainly before 2pm. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.

    High: 63 °F

    Rain Likely

  • Friday Night

    Friday Night: A chance of rain before 8pm. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.

    Low: 31 °F

    Chance Rain
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 52. North wind around 5 mph becoming calm in the afternoon.
Tonight
Increasing clouds, with a low around 38. Light south wind.
Wednesday
Partly sunny, with a high near 59. South wind 5 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 48. South wind around 7 mph.
Thursday
Partly sunny, with a high near 73. South wind 7 to 10 mph, with gusts as high as 21 mph.
Thursday Night
A chance of rain, then rain likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Friday
Rain likely, mainly before 2pm. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.
Friday Night
A chance of rain before 8pm. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 49.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 58.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 66.
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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:
10:54 am EDT Mar 24, 2026
Forecast Valid:
11am EDT Mar 24, 2026-6pm EDT Mar 30, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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