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.

Mostly Cloudy

27°F

-3°C

Humidity 55%
Wind Speed W 3 mph
Barometer 29.93 in (1013.9 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Last update 3 Jan 12:52 am EST
Extended Forecast for

5 Miles NW Catharpin VA

  • Overnight

    Overnight: Mostly cloudy, with a low around 24. North wind 3 to 5 mph.

    Low: 24 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 36. Calm wind.

    High: 36 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A slight chance of snow before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 24. Calm wind. Chance of precipitation is 20%.

    Low: 24 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 40. Northwest wind 5 to 13 mph, with gusts as high as 21 mph.

    High: 40 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 23. Northwest wind around 6 mph becoming calm after midnight.

    Low: 23 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy

  • Tuesday Night

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

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 24. North wind 3 to 5 mph.
Saturday
Mostly cloudy, with a high near 36. Calm wind.
Saturday Night
A slight chance of snow before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 24. Calm wind. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 40. Northwest wind 5 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 23. Northwest wind around 6 mph becoming calm after midnight.
Monday
Partly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Mostly cloudy, with a high near 52.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
Mostly cloudy, with a high near 56.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 46. Chance of precipitation is 30%.
Friday
A chance of rain. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.
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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:
12:53 am EST Jan 3, 2026
Forecast Valid:
1am EST Jan 3, 2026-6pm EST Jan 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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