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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:SW wind around 10 kt. Increasing clouds. Seas around 2 ft.

      Low: 40 °F

      SW 10kt
      2ft

    • Monday

      Monday:SW wind 10 to 15 kt. Partly sunny. Seas around 2 ft.

      High: 56 °F

      SW 15kt
      2ft

    • Monday Night

      Monday Night:SW wind 5 to 10 kt becoming W after midnight. A slight chance of rain after 5am.   Seas around 2 ft.

      Low: 44 °F

      SW 10kt
      2ft

    • Tuesday

      Tuesday:E wind 5 to 10 kt. A chance of rain after 7am.   Seas 1 to 2 ft.

      High: 50 °F

      E 10kt
      1-2ft

    • Tuesday Night

      Tuesday Night:ENE wind 10 to 15 kt becoming SSW after midnight. A chance of rain.   Seas 2 to 3 ft.

      Low: 41 °F

      SSW 15kt
      2-3ft

    • Wednesday

      Wednesday:SSW wind around 15 kt becoming WSW in the afternoon. Winds could gust as high as 20 kt. Showers likely, mainly after 3pm.   Seas around 3 ft.

      High: 62 °F

      SSW 15kt
      3ft

    • Wednesday Night

      Wednesday Night:NW wind around 10 kt becoming NNE after midnight. Rain likely, mainly before 8pm.   Seas around 2 ft.

      Low: 38 °F

      NW 10kt
      2ft

    • Thursday

      Thursday:ENE wind around 10 kt. A chance of rain.   Seas around 2 ft.

      High: 41 °F

      ENE 10kt
      2ft

    • Thursday Night

      Thursday Night:ENE wind around 10 kt. Rain and snow likely, mainly after 1am.   Seas around 2 ft.

      Low: 36 °F

      ENE 10kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:51 pm EDT Mar 29, 2026
Forecast Valid: 11pm EDT Mar 29, 2026-6pm EDT Apr 5, 2026

View Nearby Observations

Detailed Forecast


Overnight
SW wind around 10 kt. Increasing clouds. Seas around 2 ft.
Monday
SW wind 10 to 15 kt. Partly sunny. Seas around 2 ft.
Monday Night
SW wind 5 to 10 kt becoming W after midnight. A slight chance of rain after 5am. Seas around 2 ft.
Tuesday
E wind 5 to 10 kt. A chance of rain after 7am. Seas 1 to 2 ft.
Tuesday Night
ENE wind 10 to 15 kt becoming SSW after midnight. A chance of rain. Seas 2 to 3 ft.
Wednesday
SSW wind around 15 kt becoming WSW in the afternoon. Winds could gust as high as 20 kt. Showers likely, mainly after 3pm. Seas around 3 ft.
Wednesday Night
NW wind around 10 kt becoming NNE after midnight. Rain likely, mainly before 8pm. Seas around 2 ft.
Thursday
ENE wind around 10 kt. A chance of rain. Seas around 2 ft.
Thursday Night
ENE wind around 10 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: 42.98°N 70.74°W
Last Update: 7:51 pm EDT Mar 29, 2026
Forecast Valid: 11pm EDT Mar 29, 2026-6pm EDT Apr 5, 2026
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