National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

37°F

3°C

Humidity 30%
Wind Speed S 8 mph
Barometer 30.02 in (1016.6 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 17 Jan 2:52 am EST
Extended Forecast for

5 Miles NW Catharpin VA

  • Overnight

    Overnight: Cloudy, with a low around 31. South wind around 9 mph.

    Low: 31 °F

    Cloudy

  • Saturday

    Saturday: A chance of rain, snow, and sleet before 11am, then a slight chance of rain between 11am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 46. South wind 7 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    High: 46 °F

    Chance Wintry
    Mix then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31. Northwest wind 3 to 5 mph.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of light snow, mainly between 7am and 1pm. Mostly cloudy, with a high near 34. North wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 34 °F

    Chance Light
    Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 20. Northwest wind around 6 mph becoming calm in the evening.

    Low: 20 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 28.

    High: 28 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

Detailed Forecast

Overnight
Cloudy, with a low around 31. South wind around 9 mph.
Saturday
A chance of rain, snow, and sleet before 11am, then a slight chance of rain between 11am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 46. South wind 7 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Saturday Night
Mostly cloudy, with a low around 31. Northwest wind 3 to 5 mph.
Sunday
A chance of light snow, mainly between 7am and 1pm. Mostly cloudy, with a high near 34. North wind 6 to 8 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 20. Northwest wind around 6 mph becoming calm in the evening.
M.L.King Day
Sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Sunny, with a high near 28.
Tuesday Night
Mostly clear, with a low around 13.
Wednesday
Mostly sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
Partly sunny, with a high near 44.
Thursday Night
Partly cloudy, with a low around 23.
Friday
Mostly sunny, with a high near 36.
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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 17, 2026
Forecast Valid:
3am EST Jan 17, 2026-6pm EST Jan 23, 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