Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Fair

63°F

17°C

Humidity 90%
Wind Speed SE 6 mph
Barometer 29.93 in (1013.3 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 15 Apr 3:52 am EDT
Extended Forecast for

Catharpin VA

  • Today

    Today: Sunny, with a high near 91. Light southwest wind increasing to 6 to 11 mph in the morning.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 68. Southwest wind 6 to 8 mph.

    Low: 68 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 92. Southwest wind 5 to 13 mph, with gusts as high as 20 mph.

    High: 92 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers.  Mostly cloudy, with a low around 69. West wind around 8 mph.  Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, mainly after 2pm.  Partly sunny, with a high near 83. Northwest wind 6 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%.

    High: 83 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 8pm.  Mostly clear, with a low around 63. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers.  Mostly cloudy, with a low around 56. Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers.  Mostly cloudy, with a high near 70. Chance of precipitation is 50%.

    High: 70 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 91. Light southwest wind increasing to 6 to 11 mph in the morning.
Tonight
Partly cloudy, with a low around 68. Southwest wind 6 to 8 mph.
Thursday
Partly sunny, with a high near 92. Southwest wind 5 to 13 mph, with gusts as high as 20 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 69. West wind around 8 mph. Chance of precipitation is 30%.
Friday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 83. Northwest wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers before 8pm. Mostly clear, with a low around 63. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Sunday
A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 50%.
Sunday Night
A chance of showers before 2am. Partly cloudy, with a low around 41. Chance of precipitation is 30%.
Monday
Sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 36.
Tuesday
Sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Catharpin VA
 38.86°N 77.58°W (Elev. 295 ft)
2:23 am EDT Apr 15, 2026
4am EDT Apr 15, 2026-6pm EDT Apr 21, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database