Marine Point Forecast 42.99°N 70.62°W (Text-Only)
NWS Forecast for: 8NM SE Portsmouth NH
Atlantic Ocean

Issued by: National Weather Service Gray/Portland, ME
Last Update: 5:52 am EST Dec 11, 2025
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  • Today

    Today: W wind 20 to 25 kt increasing to 25 to 30 kt in the afternoon. Winds could gust as high as 35 kt. Mostly sunny. Seas 3 to 4 ft.

    High: 38 °FFalling Temperatures

    Mostly Sunny

  • Tonight

    Tonight: W wind 25 to 30 kt, with gusts as high as 40 kt. Widespread freezing spray after 2am. Mostly clear. Seas 3 to 4 ft.

    Low: 24 °F

    Freezing Spray

  • Friday

    Friday: W wind around 25 kt, with gusts as high as 30 kt. Widespread freezing spray before 10am. Sunny. Seas around 3 ft.

    High: 32 °F

    Freezing Spray

  • Friday
    Night

    Friday Night: W wind 15 to 20 kt decreasing to 10 to 15 kt after midnight. Winds could gust as high as 25 kt. Mostly clear. Seas 3 ft subsiding to 1 ft.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: W wind around 10 kt becoming SW in the afternoon. Partly sunny. Seas around 1 ft.

    High: 36 °F

    Partly Sunny

  • Saturday
    Night

    Saturday Night: W wind around 10 kt. A chance of snow showers after 5am.   Seas around 1 ft.

    Low: 30 °F

    Chance Snow

  • Sunday

    Sunday: W wind 10 to 13 kt becoming NNW 12 to 15 kt in the afternoon. Winds could gust as high as 25 kt. A chance of snow.   Seas 1 to 2 ft.

    High: 32 °F

    Chance Snow

  • Sunday
    Night

    Sunday Night: NNW wind 20 to 25 kt, with gusts as high as 35 kt. A chance of snow.   Seas around 2 ft.

    Low: 23 °F

    Chance Snow

  • Monday

    Monday: WNW wind around 20 kt, with gusts as high as 30 kt. Sunny. Seas around 2 ft.

    High: 27 °F

    Sunny



  • Today: W wind 20 to 25 kt increasing to 25 to 30 kt in the afternoon. Winds could gust as high as 35 kt. Mostly sunny. Seas 3 to 4 ft.

    Tonight: W wind 25 to 30 kt, with gusts as high as 40 kt. Widespread freezing spray after 2am. Mostly clear. Seas 3 to 4 ft.

    Friday: W wind around 25 kt, with gusts as high as 30 kt. Widespread freezing spray before 10am. Sunny. Seas around 3 ft.

    Friday Night: W wind 15 to 20 kt decreasing to 10 to 15 kt after midnight. Winds could gust as high as 25 kt. Mostly clear. Seas 3 ft subsiding to 1 ft.

    Saturday: W wind around 10 kt becoming SW in the afternoon. Partly sunny. Seas around 1 ft.

    Saturday Night: W wind around 10 kt. A chance of snow showers after 5am. Seas around 1 ft.

    Sunday: W wind 10 to 13 kt becoming NNW 12 to 15 kt in the afternoon. Winds could gust as high as 25 kt. A chance of snow. Seas 1 to 2 ft.

    Sunday Night: NNW wind 20 to 25 kt, with gusts as high as 35 kt. A chance of snow. Seas around 2 ft.

    Monday: WNW wind around 20 kt, with gusts as high as 30 kt. Sunny. Seas around 2 ft.



    Marine Point Forecast: 42.99°N 70.62°W
    Associated Zone Forecast which includes this point

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