Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

For More Weather Information:

Philadelphia, PA Local Forecast Office

35NM S Philadelphia PA

Marine Point Forecast

[NOTICE]
    • Today

      Today:WNW wind 15 to 20 kt, with gusts as high as 35 kt. Partly sunny. Waves 1 ft or less.

      High: 37 °F

      WNW 20kt
      < 1ft

    • Tonight

      Tonight:W wind around 10 kt, with gusts as high as 25 kt. Mostly clear. Waves 1 ft or less.

      Low: 24 °F

      W 10kt
      < 1ft

    • Friday

      Friday:Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.

      High: 38 °F

      Light Wind
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. A slight chance of snow.   Waves 1 ft or less.

      Low: 24 °F

      Light Wind
      < 1ft

    • Saturday

      Saturday:Variable winds 5 kt or less. Partly sunny. Waves 1 ft or less.

      High: 43 °F

      Light Wind
      < 1ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Snow likely, possibly mixed with rain, becoming all snow after 4am.   Waves 1 ft or less.

      Low: 25 °F

      Light Wind
      < 1ft

    • Sunday

      Sunday:NW wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Snow likely before 1pm.   Waves 1 ft or less.

      High: 33 °F

      ⇑NW 15kt
      < 1ft

    • Sunday Night

      Sunday Night:NW wind around 10 kt, with gusts as high as 25 kt. Mostly clear. Waves 1 ft or less.

      Low: 17 °F

      NW 10kt
      < 1ft

    • Monday

      Monday:NW wind 5 to 10 kt, with gusts as high as 20 kt. Mostly sunny. Waves 1 ft or less.

      High: 31 °F

      NW 10kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:33 am EST Dec 11, 2025
Forecast Valid: 8am EST Dec 11, 2025-6pm EST Dec 17, 2025

View Nearby Observations

Detailed Forecast

...GALE WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING...

Today
WNW wind 15 to 20 kt, with gusts as high as 35 kt. Partly sunny. Waves 1 ft or less.
Tonight
W wind around 10 kt, with gusts as high as 25 kt. Mostly clear. Waves 1 ft or less.
Friday
Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.
Friday Night
Variable winds 5 kt or less. A slight chance of snow. Waves 1 ft or less.
Saturday
Variable winds 5 kt or less. Partly sunny. Waves 1 ft or less.
Saturday Night
Variable winds 5 kt or less. Snow likely, possibly mixed with rain, becoming all snow after 4am. Waves 1 ft or less.
Sunday
NW wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Snow likely before 1pm. Waves 1 ft or less.
Sunday Night
NW wind around 10 kt, with gusts as high as 25 kt. Mostly clear. Waves 1 ft or less.
Monday
NW wind 5 to 10 kt, with gusts as high as 20 kt. Mostly sunny. Waves 1 ft or less.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 39.39°N 75.24°W
Last Update: 6:33 am EST Dec 11, 2025
Forecast Valid: 8am EST Dec 11, 2025-6pm EST Dec 17, 2025
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