Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

72°F

22°C

Humidity 71%
Wind Speed NW 7 mph
Barometer 30.12 in (1019.7 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 30 Sep 11:52 am EDT
Extended Forecast for

Herndon VASimilar City Names

  • This Afternoon

    This Afternoon: Cloudy, with a high near 77. North wind 6 to 8 mph.

    High: 77 °F

    Cloudy

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 57. North wind around 8 mph.

    Low: 57 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 72. North wind around 10 mph, with gusts as high as 18 mph.

    High: 72 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 47. North wind around 6 mph.

    Low: 47 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 70. Northeast wind around 6 mph becoming east in the afternoon.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 77. North wind 6 to 8 mph.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 57. North wind around 8 mph.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 72. North wind around 10 mph, with gusts as high as 18 mph.
Wednesday Night
Clear, with a low around 47. North wind around 6 mph.
Thursday
Sunny, with a high near 70. Northeast wind around 6 mph becoming east in the afternoon.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Mostly sunny, with a high near 71.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 56.
Monday
Mostly sunny, with a high near 79.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Herndon VASimilar City Names
 38.97°N 77.38°W (Elev. 354 ft)
12:33 pm EDT Sep 30, 2025
12pm EDT Sep 30, 2025-6pm EDT Oct 6, 2025
 
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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