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

50°F

10°C

Humidity 46%
Wind Speed SW 8 G 22 mph
Barometer 29.83 in (1010.1 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 14 Mar 1:52 am EDT
Extended Forecast for

5 Miles NW Catharpin VA

  • Overnight

    Overnight: Mostly clear, with a low around 42. West wind 11 to 13 mph, with gusts as high as 24 mph.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 57. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38. Light and variable wind.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 59. Southeast wind 6 to 14 mph, with gusts as high as 25 mph.

    High: 59 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers. Low around 52. Southeast wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 52 °F

    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 70. Breezy. Chance of precipitation is 100%.

    High: 70 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: Rain showers likely, mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 29. Chance of precipitation is 60%.

    Low: 29 °F

    Rain/Snow
    Likely

  • Tuesday

    Tuesday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly 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 42. West wind 11 to 13 mph, with gusts as high as 24 mph.
Saturday
Mostly sunny, with a high near 57. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 38. Light and variable wind.
Sunday
Mostly cloudy, with a high near 59. Southeast wind 6 to 14 mph, with gusts as high as 25 mph.
Sunday Night
Showers. Low around 52. Southeast wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Monday
Showers, with thunderstorms also possible after 2pm. High near 70. Breezy. Chance of precipitation is 100%.
Monday Night
Rain showers likely, mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 29. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 37.
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
Mostly sunny, with a high near 54.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Mostly sunny, with a high near 60.
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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:
1:53 am EDT Mar 14, 2026
Forecast Valid:
2am EDT Mar 14, 2026-6pm EDT Mar 20, 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