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.

Fair

53°F

12°C

Humidity 57%
Wind Speed NW 12 mph
Barometer 29.95 in (1014.2 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 7 Jan 5:52 pm EST
Extended Forecast for

5 Miles NW Catharpin VA

  • Tonight

    Tonight: Mostly clear, with a low around 34. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 34 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 54. Calm wind becoming south around 6 mph in the afternoon.

    High: 54 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. South wind 6 to 8 mph.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of rain after 1pm. Mostly cloudy, with a high near 59. South wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    High: 59 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday Night

    Friday Night: Rain likely, mainly after 1am. Cloudy, with a low around 54. South wind 6 to 9 mph. Chance of precipitation is 70%.

    Low: 54 °F

    Chance Rain
    then Rain
    Likely

  • Saturday

    Saturday: Rain. High near 64. Chance of precipitation is 100%.

    High: 64 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 1am. Cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Rain Likely

  • Sunday

    Sunday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 34. Northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 54. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 41. South wind 6 to 8 mph.
Friday
A chance of rain after 1pm. Mostly cloudy, with a high near 59. South wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Friday Night
Rain likely, mainly after 1am. Cloudy, with a low around 54. South wind 6 to 9 mph. Chance of precipitation is 70%.
Saturday
Rain. High near 64. Chance of precipitation is 100%.
Saturday Night
Rain likely, mainly before 1am. Cloudy, with a low around 43. Chance of precipitation is 60%.
Sunday
Partly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
Partly sunny, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Catharpin VA
 38.9°N 77.62°W (Elev. 348 ft)
Last Update:
3:53 pm EST Jan 7, 2026
Forecast Valid:
6pm EST Jan 7, 2026-6pm EST Jan 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation