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.

Overcast

44°F

7°C

Humidity 58%
Wind Speed W 14 G 25 mph
Barometer 29.44 in (997.0 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 15 Jan 1:52 am EST
Extended Forecast for

5 Miles NW Catharpin VA

  • Overnight

    Overnight: Mostly cloudy, with a low around 27. Northwest wind around 18 mph, with gusts as high as 33 mph.

    Low: 27 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 32. West wind 9 to 17 mph, with gusts as high as 28 mph.

    High: 32 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 20. Northwest wind 6 to 14 mph becoming southwest after midnight. Winds could gust as high as 32 mph.

    Low: 20 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 37. South wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 37 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 30. South wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 30 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow and freezing rain before 10am, then a chance of rain and snow between 10am and 1pm. Partly sunny, with a high near 46. Chance of precipitation is 30%.

    High: 46 °F

    Chance Wintry
    Mix

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 32.

    High: 32 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 16.

    Low: 16 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 27. Northwest wind around 18 mph, with gusts as high as 33 mph.
Thursday
Mostly sunny, with a high near 32. West wind 9 to 17 mph, with gusts as high as 28 mph.
Thursday Night
Mostly clear, with a low around 20. Northwest wind 6 to 14 mph becoming southwest after midnight. Winds could gust as high as 32 mph.
Friday
Increasing clouds, with a high near 37. South wind 6 to 11 mph, with gusts as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 30. South wind 8 to 10 mph, with gusts as high as 20 mph.
Saturday
A chance of snow and freezing rain before 10am, then a chance of rain and snow between 10am and 1pm. Partly sunny, with a high near 46. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
Mostly cloudy, with a high near 32.
Sunday Night
Mostly clear, with a low around 16.
M.L.King Day
Sunny, with a high near 35.
Monday Night
Partly cloudy, with a low around 13.
Tuesday
Sunny, with a high near 26.
Tuesday Night
Mostly clear, with a low around 11.
Wednesday
Mostly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Catharpin VA
 38.9°N 77.62°W (Elev. 348 ft)
Last Update:
1:20 am EST Jan 15, 2026
Forecast Valid:
2am EST Jan 15, 2026-6pm EST Jan 21, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation