Marine Point Forecast 42.9°N 70.79°W (Text-Only)
NWS Forecast for: 10NM S Portsmouth NH
Atlantic Ocean

Issued by: National Weather Service Gray/Portland, ME
Last Update: 9:56 pm EDT Jun 30, 2025
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  • Tuesday

    Tuesday: S wind 5 to 10 kt. Scattered showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then scattered showers and thunderstorms after 3pm. Some of the storms could be severe.  Areas of fog before 11am.  Seas around 2 ft.

    High: 80 °F

    Severe Thunderstorms

  • Tuesday
    Night

    Tuesday Night: SW wind around 10 kt. Scattered showers and thunderstorms before 11pm, then isolated showers. Some of the storms could be severe.   Seas around 2 ft.

    Low: 65 °F

    Severe Thunderstorms

  • Wednesday

    Wednesday: Variable winds 5 kt or less. Partly sunny. Seas around 2 ft.

    High: 82 °F

    Partly Sunny

  • Wednesday
    Night

    Wednesday Night: Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.

    Low: 70 °F

    Partly Cloudy

  • Thursday

    Thursday: W wind 5 to 10 kt becoming SSW in the afternoon. Sunny. Seas around 2 ft.

    High: 81 °F

    Sunny

  • Thursday
    Night

    Thursday Night: Variable winds 5 kt or less. Mostly clear. Seas around 2 ft.

    Low: 67 °F

    Mostly Clear

  • Independence
    Day

    Independence Day: Variable winds 5 kt or less. Sunny. Seas around 2 ft.

    High: 75 °F

    Sunny

  • Friday
    Night

    Friday Night: Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.

    High: 77 °F

    Mostly Sunny

  • Tuesday: S wind 5 to 10 kt. Scattered showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then scattered showers and thunderstorms after 3pm. Some of the storms could be severe. Areas of fog before 11am. Seas around 2 ft.

    Tuesday Night: SW wind around 10 kt. Scattered showers and thunderstorms before 11pm, then isolated showers. Some of the storms could be severe. Seas around 2 ft.

    Wednesday: Variable winds 5 kt or less. Partly sunny. Seas around 2 ft.

    Wednesday Night: Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.

    Thursday: W wind 5 to 10 kt becoming SSW in the afternoon. Sunny. Seas around 2 ft.

    Thursday Night: Variable winds 5 kt or less. Mostly clear. Seas around 2 ft.

    Independence Day: Variable winds 5 kt or less. Sunny. Seas around 2 ft.

    Friday Night: Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.

    Saturday: Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.



    Marine Point Forecast: 42.9°N 70.79°W
    Associated Zone Forecast which includes this point

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