Marine Point Forecast 41.55°N 70.79°W (Text-Only)
NWS Forecast for: 21NM E Portsmouth RI
Atlantic Ocean

Issued by: National Weather Service Norton, MA
Last Update: 6:15 am EDT Jul 9, 2025
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  • Today

    Today: SW wind around 8 kt. A chance of showers, with thunderstorms also possible after 2pm. Some of the storms could produce heavy rainfall.  Patchy fog before 2pm.  Seas around 2 ft.

    High: 73 °F

    Heavy Rain

  • Tonight

    Tonight: E wind around 6 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms.  Patchy fog after 9pm.  Seas around 1 ft.

    Low: 68 °F

    Chance Showers

  • Thursday

    Thursday: ENE wind 9 to 12 kt becoming SE in the morning. Showers likely and possibly a thunderstorm before 11am, then showers likely between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Patchy fog.  Seas 1 to 2 ft.

    High: 73 °F

    Showers Likely

  • Thursday
    Night

    Thursday Night: ESE wind around 11 kt becoming NW after midnight. A chance of showers and thunderstorms.  Patchy fog before 9pm.  Seas around 2 ft.

    Low: 68 °F

    Chance T-storms

  • Friday

    Friday: NNE wind 8 to 10 kt becoming ESE in the afternoon. A chance of showers, mainly before 10am.   Seas 1 to 2 ft.

    High: 74 °F

    Chance Showers

  • Friday
    Night

    Friday Night: SE wind 5 to 9 kt becoming E after midnight. Mostly cloudy. Seas around 1 ft.

    Low: 68 °F

    Mostly Cloudy

  • Saturday

    Saturday: E wind 5 to 8 kt becoming SE in the afternoon. Mostly cloudy. Seas around 1 ft.

    High: 74 °F

    Mostly Cloudy

  • Saturday
    Night

    Saturday Night: SSE wind around 6 kt. Mostly cloudy. Seas around 1 ft.

    Low: 68 °F

    Mostly Cloudy

  • Sunday

    Sunday: S wind 6 to 10 kt. Partly sunny. Seas around 1 ft.

    High: 74 °F

    Partly Sunny

  • Today: SW wind around 8 kt. A chance of showers, with thunderstorms also possible after 2pm. Some of the storms could produce heavy rainfall. Patchy fog before 2pm. Seas around 2 ft.

    Tonight: E wind around 6 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms. Patchy fog after 9pm. Seas around 1 ft.

    Thursday: ENE wind 9 to 12 kt becoming SE in the morning. Showers likely and possibly a thunderstorm before 11am, then showers likely between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Patchy fog. Seas 1 to 2 ft.

    Thursday Night: ESE wind around 11 kt becoming NW after midnight. A chance of showers and thunderstorms. Patchy fog before 9pm. Seas around 2 ft.

    Friday: NNE wind 8 to 10 kt becoming ESE in the afternoon. A chance of showers, mainly before 10am. Seas 1 to 2 ft.

    Friday Night: SE wind 5 to 9 kt becoming E after midnight. Mostly cloudy. Seas around 1 ft.

    Saturday: E wind 5 to 8 kt becoming SE in the afternoon. Mostly cloudy. Seas around 1 ft.

    Saturday Night: SSE wind around 6 kt. Mostly cloudy. Seas around 1 ft.

    Sunday: S wind 6 to 10 kt. Partly sunny. Seas around 1 ft.



    Marine Point Forecast: 41.55°N 70.79°W
    Associated Zone Forecast which includes this point

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