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

46°F

8°C

Humidity 96%
Wind Speed Calm
Barometer 29.87 in (1011.6 mb)
Dewpoint 45°F (7°C)
Visibility 7.00 mi
Last update 10 Jan 5:52 pm EST
Extended Forecast for

2 Miles NNW Catharpin VA

  • Tonight

    Tonight: A chance of rain, mainly before 1am. Mostly cloudy, with a low around 36. Light and variable wind becoming northwest 5 to 10 mph after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 40%.

    Low: 36 °F

    Chance Rain
    then Mostly
    Cloudy

  • Sunday

    Sunday: A slight chance of rain and snow showers between 1pm and 4pm. Mostly sunny, with a high near 45. Breezy, with a west wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 20%.

    High: 45 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 28. Northwest wind 13 to 17 mph, with gusts as high as 33 mph.

    Low: 28 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 46. Northwest wind 7 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.

    High: 46 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 27. Southwest wind around 5 mph becoming calm in the evening.

    Low: 27 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 51.

    High: 51 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
A chance of rain, mainly before 1am. Mostly cloudy, with a low around 36. Light and variable wind becoming northwest 5 to 10 mph after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 40%.
Sunday
A slight chance of rain and snow showers between 1pm and 4pm. Mostly sunny, with a high near 45. Breezy, with a west wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 28. Northwest wind 13 to 17 mph, with gusts as high as 33 mph.
Monday
Sunny, with a high near 46. Northwest wind 7 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.
Monday Night
Mostly clear, with a low around 27. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Cloudy, with a high near 51.
Wednesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 38.
Friday Night
Partly cloudy, with a low around 24.
Saturday
Partly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Catharpin VA
 38.88°N 77.57°W (Elev. 305 ft)
Last Update:
3:53 pm EST Jan 10, 2026
Forecast Valid:
6pm EST Jan 10, 2026-6pm EST Jan 17, 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