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

29°F

-2°C

Humidity 66%
Wind Speed Calm
Barometer 30.23 in (1023.9 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 4 Jan 11:52 pm EST
Extended Forecast for

5 Miles NW Catharpin VA

  • Overnight

    Overnight: Mostly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 45. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 45 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33. South wind around 6 mph becoming calm in the evening.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 54. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 54 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 44. Southwest wind around 7 mph.

    Low: 44 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of rain after 1am. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.

    Low: 47 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 24. Calm wind.
Monday
Partly sunny, with a high near 45. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 33. South wind around 6 mph becoming calm in the evening.
Tuesday
Mostly cloudy, with a high near 54. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 44. Southwest wind around 7 mph.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 36.
Thursday
Mostly sunny, with a high near 57.
Thursday Night
A chance of rain after 1am. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.
Friday
A chance of rain. Mostly cloudy, with a high near 59. Chance of precipitation is 50%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Saturday
A chance of rain. Mostly cloudy, with a high near 59. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 44.
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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:
9:53 pm EST Jan 4, 2026
Forecast Valid:
12am EST Jan 5, 2026-6pm EST Jan 11, 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