National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

27°F

-3°C

Humidity 92%
Wind Speed Calm
Barometer 30.11 in (1019.7 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 4 Dec 7:52 am EST
Extended Forecast for

Catharpin VA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 44. Light northwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

    High: 44 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 22. North wind 5 to 8 mph becoming calm after midnight.

    Low: 22 °F

    Increasing
    Clouds

  • Friday

    Friday: Snow likely, mainly between 7am and 1pm. Cloudy, with a high near 33. Calm wind becoming south around 5 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 33 °F

    Snow Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 43. Light south wind.

    High: 43 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 44. Light northwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 23 mph.
Tonight
Increasing clouds, with a low around 22. North wind 5 to 8 mph becoming calm after midnight.
Friday
Snow likely, mainly between 7am and 1pm. Cloudy, with a high near 33. Calm wind becoming south around 5 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday Night
Mostly cloudy, with a low around 21. Calm wind.
Saturday
Partly sunny, with a high near 43. Light south wind.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 44.
Sunday Night
Mostly cloudy, with a low around 25.
Monday
Partly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Mostly cloudy, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Catharpin VA
 38.85°N 77.55°W (Elev. 233 ft)
Last Update:
7:57 am EST Dec 4, 2025
Forecast Valid:
8am EST Dec 4, 2025-6pm EST Dec 10, 2025
 
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

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation