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.

A Few Clouds

52°F

11°C

Humidity 41%
Wind Speed SW 9 mph
Barometer 29.80 in (1009.1 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 13 Mar 11:52 pm EDT
Extended Forecast for

5 Miles NW Catharpin VA

  • Overnight

    Overnight: Mostly clear, with a low around 41. West wind 9 to 11 mph, with gusts as high as 24 mph.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 56. Northwest wind 9 to 16 mph, with gusts as high as 28 mph.

    High: 56 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38. North wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 58. Southeast wind 6 to 14 mph, with gusts as high as 25 mph.

    High: 58 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain. Low around 52. Southeast wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.

    Low: 52 °F

    Rain

  • Monday

    Monday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 68. Breezy. Chance of precipitation is 100%.

    High: 68 °F

    Breezy.
    Showers
    Likely then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 30. Breezy. Chance of precipitation is 80%.

    Low: 30 °F

    Showers and
    Breezy then
    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 41. West wind 9 to 11 mph, with gusts as high as 24 mph.
Saturday
Increasing clouds, with a high near 56. Northwest wind 9 to 16 mph, with gusts as high as 28 mph.
Saturday Night
Mostly cloudy, with a low around 38. North wind around 5 mph becoming calm in the evening.
Sunday
Mostly cloudy, with a high near 58. Southeast wind 6 to 14 mph, with gusts as high as 25 mph.
Sunday Night
Rain. Low around 52. Southeast wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Monday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 68. Breezy. Chance of precipitation is 100%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 30. Breezy. Chance of precipitation is 80%.
Tuesday
Partly sunny, with a high near 38.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
Partly sunny, with a high near 54.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 56.
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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:
10:53 pm EDT Mar 13, 2026
Forecast Valid:
12am EDT Mar 14, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation