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 79%
Wind Speed S 10 mph
Barometer 30.18 in (1022.2 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 9 Jan 10:52 am EST
Extended Forecast for

Catharpin VA

  • Today

    Today: Rain likely, mainly after 4pm. Cloudy, with a high near 56. South wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Rain Likely

  • Tonight

    Tonight: A chance of rain before 9pm, then a chance of rain after 5am. Cloudy, with a low around 46. South wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 50%.

    Low: 46 °F

    Chance Rain

  • Saturday

    Saturday: Rain, mainly after 7am. High near 51. Northeast wind 3 to 6 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 51 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 1am. Cloudy, with a low around 40. Light northwest wind increasing to 5 to 9 mph in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Rain Likely

  • Sunday

    Sunday: A slight chance of rain before 1pm. Mostly sunny, with a high near 46. West wind 10 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

Detailed Forecast

Today
Rain likely, mainly after 4pm. Cloudy, with a high near 56. South wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of rain before 9pm, then a chance of rain after 5am. Cloudy, with a low around 46. South wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 50%.
Saturday
Rain, mainly after 7am. High near 51. Northeast wind 3 to 6 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Rain likely, mainly before 1am. Cloudy, with a low around 40. Light northwest wind increasing to 5 to 9 mph in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A slight chance of rain before 1pm. Mostly sunny, with a high near 46. West wind 10 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 29.
Monday
Sunny, with a high near 44.
Monday Night
Mostly clear, with a low around 28.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Mostly cloudy, with a high near 50.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Thursday
A chance of rain. Mostly cloudy, with a high near 41. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Catharpin VA
 38.86°N 77.58°W (Elev. 295 ft)
Last Update:
9:53 am EST Jan 9, 2026
Forecast Valid:
11am EST Jan 9, 2026-6pm EST Jan 15, 2026
 
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Additional Resources

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Chance of Precipitation