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

44°F

7°C

Humidity 83%
Wind Speed Calm
Barometer 30.38 in (1028.7 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 12 Apr 2:52 am EDT
Extended Forecast for

3 Miles NNW Mc Lean VA

  • Overnight

    Overnight: Partly cloudy, with a low around 46. Light northeast wind.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 75. East wind 7 to 13 mph becoming south in the afternoon. Winds could gust as high as 22 mph.

    High: 75 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 58. South wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 58 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers after 2pm. Partly sunny, with a high near 87. Southwest wind 11 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63. West wind 5 to 9 mph becoming light after midnight.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 20%.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 69.

    Low: 69 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 46. Light northeast wind.
Sunday
Mostly sunny, with a high near 75. East wind 7 to 13 mph becoming south in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Mostly cloudy, with a low around 58. South wind 10 to 13 mph, with gusts as high as 22 mph.
Monday
A slight chance of showers after 2pm. Partly sunny, with a high near 87. Southwest wind 11 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 63. West wind 5 to 9 mph becoming light after midnight.
Tuesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Mostly sunny, with a high near 92.
Wednesday Night
Mostly cloudy, with a low around 69.
Thursday
Partly sunny, with a high near 91.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 89.
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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:
2:23 am EDT Apr 12, 2026
Forecast Valid:
3am EDT Apr 12, 2026-6pm EDT Apr 18, 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