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

61°F

16°C

Humidity 75%
Wind Speed NW 6 mph
Barometer 30.21 in (1022.7 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 11 Apr 6:52 am EDT
Extended Forecast for

Catharpin VA

  • Today

    Today: Sunny, with a high near 69. North wind 8 to 14 mph, with gusts as high as 21 mph.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. Northeast wind around 6 mph becoming calm in the evening.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 74. East wind 5 to 11 mph becoming south in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 60. South wind around 9 mph.

    Low: 60 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 87. South wind 11 to 18 mph, with gusts as high as 30 mph.

    High: 87 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 61. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 93.

    High: 93 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 69. North wind 8 to 14 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 44. Northeast wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 74. East wind 5 to 11 mph becoming south in the afternoon.
Sunday Night
Mostly cloudy, with a low around 60. South wind around 9 mph.
Monday
Partly sunny, with a high near 87. South wind 11 to 18 mph, with gusts as high as 30 mph.
Monday Night
A slight chance of showers before 2am. Partly cloudy, with a low around 61. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 89.
Tuesday Night
Mostly cloudy, with a low around 64.
Wednesday
Partly sunny, with a high near 93.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 91.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 88. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Catharpin VA
 38.86°N 77.58°W (Elev. 295 ft)
Last Update:
4:54 am EDT Apr 11, 2026
Forecast Valid:
6am EDT Apr 11, 2026-6pm EDT Apr 17, 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