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Hazardous Weather Conditions

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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:SSW wind around 15 kt, with gusts as high as 25 kt. Increasing clouds. Seas 2 to 3 ft.

      Low: 40 °F

      SSW 15kt
      2-3ft

    • Monday

      Monday:SSW wind 15 to 20 kt. Mostly cloudy. Seas around 3 ft.

      High: 53 °F

      SSW 20kt
      3ft

    • Monday Night

      Monday Night:SW wind 12 to 15 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 20 kt. A slight chance of rain after 5am. Seas 2 to 3 ft.

      Low: 44 °F

      SW 15kt⇓
      2-3ft

    • Tuesday

      Tuesday:E wind around 10 kt. A chance of rain after 7am. Seas around 2 ft.

      High: 47 °F

      E 10kt
      2ft

    • Tuesday Night

      Tuesday Night:ENE wind 15 to 18 kt becoming SSW 17 to 20 kt after midnight. Winds could gust as high as 30 kt. A chance of rain. Patchy fog after 11pm. Seas 2 to 3 ft.

      Low: 42 °F

      ⇑SSW 20kt
      2-3ft

    • Wednesday

      Wednesday:SSW wind around 20 kt, with gusts as high as 30 kt. Showers likely, mainly after 3pm. Seas around 4 ft.

      High: 57 °F

      SSW 20kt
      4ft

    • Wednesday Night

      Wednesday Night:WNW wind around 15 kt becoming NNE after midnight. Winds could gust as high as 20 kt. Rain likely, mainly before 8pm. Seas 2 to 3 ft.

      Low: 37 °F

      NNE 15kt
      2-3ft

    • Thursday

      Thursday:ENE wind 15 to 20 kt. A chance of rain. Seas around 2 ft.

      High: 39 °F

      ENE 20kt
      2ft

    • Thursday Night

      Thursday Night:ENE wind around 15 kt, with gusts as high as 25 kt. Rain and snow likely, mainly after 1am. Seas around 2 ft.

      Low: 36 °F

      ENE 15kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:31 pm EDT Mar 29, 2026
Forecast Valid: 4pm EDT Mar 29, 2026-6pm EDT Apr 5, 2026

View Nearby Observations

Detailed Forecast


Tonight
SSW wind around 15 kt, with gusts as high as 25 kt. Increasing clouds. Seas 2 to 3 ft.
Monday
SSW wind 15 to 20 kt. Mostly cloudy. Seas around 3 ft.
Monday Night
SW wind 12 to 15 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 20 kt. A slight chance of rain after 5am. Seas 2 to 3 ft.
Tuesday
E wind around 10 kt. A chance of rain after 7am. Seas around 2 ft.
Tuesday Night
ENE wind 15 to 18 kt becoming SSW 17 to 20 kt after midnight. Winds could gust as high as 30 kt. A chance of rain. Patchy fog after 11pm. Seas 2 to 3 ft.
Wednesday
SSW wind around 20 kt, with gusts as high as 30 kt. Showers likely, mainly after 3pm. Seas around 4 ft.
Wednesday Night
WNW wind around 15 kt becoming NNE after midnight. Winds could gust as high as 20 kt. Rain likely, mainly before 8pm. Seas 2 to 3 ft.
Thursday
ENE wind 15 to 20 kt. A chance of rain. Seas around 2 ft.
Thursday Night
ENE wind around 15 kt, with gusts as high as 25 kt. Rain and snow likely, mainly after 1am. Seas around 2 ft.

*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: 42.99°N 70.62°W
Last Update: 2:31 pm EDT Mar 29, 2026
Forecast Valid: 4pm EDT Mar 29, 2026-6pm EDT Apr 5, 2026
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