Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

For More Weather Information:

Norton, MA Local Forecast Office

12NM NW Hyannis MA

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:WSW wind 8 to 13 kt becoming WNW after midnight. Winds could gust as high as 22 kt. Mostly clear. Seas 1 ft or less.

      Low: 24 °F

      WNW 13kt
      < 1ft

    • Monday

      Monday:N wind 12 to 17 kt, with gusts as high as 25 kt. Mostly sunny. Seas 1 ft or less.

      High: 30 °F

      N 17kt
      < 1ft

    • Monday Night

      Monday Night:NNW wind 6 to 10 kt. Partly cloudy. Seas 1 ft or less.

      Low: 14 °F

      NNW 10kt
      < 1ft

    • Tuesday

      Tuesday:NW wind 5 to 8 kt becoming SSW in the afternoon. Increasing clouds. Seas 1 ft or less.

      High: 42 °F

      SSW 8kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSW wind 9 to 11 kt becoming WSW after midnight. A slight chance of snow before 8pm, then a chance of rain.   Seas 1 ft or less.

      Low: 33 °F

      SSW 11kt
      < 1ft

    • Wednesday

      Wednesday:SSW wind 9 to 14 kt, with gusts as high as 23 kt. A chance of rain, mainly after noon.   Seas 1 ft or less.

      High: 50 °F

      SSW 14kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SW wind 11 to 13 kt, with gusts as high as 22 kt. A chance of rain before 4am.   Seas 1 ft or less.

      Low: 37 °F

      SW 13kt
      < 1ft

    • Thursday

      Thursday:W wind around 12 kt. Mostly sunny. Seas 1 ft or less.

      High: 44 °F

      W 12kt
      < 1ft

    • Thursday Night

      Thursday Night:W wind 7 to 9 kt. Mostly cloudy. Seas 1 ft or less.

      Low: 28 °F

      W 9kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:44 pm EST Dec 7, 2025
Forecast Valid: 11pm EST Dec 7, 2025-6pm EST Dec 14, 2025

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON...

Overnight
WSW wind 8 to 13 kt becoming WNW after midnight. Winds could gust as high as 22 kt. Mostly clear. Seas 1 ft or less.
Monday
N wind 12 to 17 kt, with gusts as high as 25 kt. Mostly sunny. Seas 1 ft or less.
Monday Night
NNW wind 6 to 10 kt. Partly cloudy. Seas 1 ft or less.
Tuesday
NW wind 5 to 8 kt becoming SSW in the afternoon. Increasing clouds. Seas 1 ft or less.
Tuesday Night
SSW wind 9 to 11 kt becoming WSW after midnight. A slight chance of snow before 8pm, then a chance of rain. Seas 1 ft or less.
Wednesday
SSW wind 9 to 14 kt, with gusts as high as 23 kt. A chance of rain, mainly after noon. Seas 1 ft or less.
Wednesday Night
SW wind 11 to 13 kt, with gusts as high as 22 kt. A chance of rain before 4am. Seas 1 ft or less.
Thursday
W wind around 12 kt. Mostly sunny. Seas 1 ft or less.
Thursday Night
W wind 7 to 9 kt. Mostly cloudy. Seas 1 ft or less.

Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.

*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: 41.78°N 70.5°W
Last Update: 6:44 pm EST Dec 7, 2025
Forecast Valid: 11pm EST Dec 7, 2025-6pm EST Dec 14, 2025
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