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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Today

      Today:SSW wind around 15 kt, with gusts as high as 25 kt. Partly sunny. Seas around 3 ft.

      High: 53 °F

      SSW 15kt
      3ft

    • Tonight

      Tonight:SW wind 12 to 15 kt becoming WNW 10 to 13 kt after midnight. Winds could gust as high as 25 kt. A chance of rain, mainly after 5am.   Seas 2 to 3 ft.

      Low: 43 °F

      SW 15kt⇓
      2-3ft

    • Tuesday

      Tuesday:E wind around 10 kt. Rain likely, mainly between 8am and 3pm.   Seas around 2 ft.

      High: 43 °F

      E 10kt
      2ft

    • Tuesday Night

      Tuesday Night:NE wind 10 to 15 kt becoming SSW after midnight. Winds could gust as high as 25 kt. A chance of rain.  Patchy fog after 11pm.  Seas 2 to 3 ft.

      Low: 41 °F

      SSW 15kt
      2-3ft

    • Wednesday

      Wednesday:SW wind 15 to 20 kt becoming W in the afternoon. Winds could gust as high as 25 kt. A chance of rain.   Seas around 4 ft.

      High: 55 °F

      SW 20kt
      4ft

    • Wednesday Night

      Wednesday Night:NNW wind around 15 kt becoming NE after midnight. Winds could gust as high as 20 kt. A chance of rain before 10pm, then a chance of rain after 3am.   Seas 2 to 3 ft.

      Low: 35 °F

      NE 15kt
      2-3ft

    • Thursday

      Thursday:ENE wind 15 to 20 kt. A chance of rain and snow before 11am, then a chance of rain.   Seas around 2 ft.

      High: 39 °F

      ENE 20kt
      2ft

    • Thursday Night

      Thursday Night:E wind around 15 kt, with gusts as high as 20 kt. Rain likely.   Seas around 2 ft.

      Low: 37 °F

      E 15kt
      2ft

    • Friday

      Friday:E wind 10 to 15 kt, with gusts as high as 20 kt. Rain likely.   Seas 2 to 3 ft.

      High: 46 °F

      E 15kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:27 am EDT Mar 30, 2026
Forecast Valid: 5am EDT Mar 30, 2026-6pm EDT Apr 5, 2026

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Detailed Forecast


Today
SSW wind around 15 kt, with gusts as high as 25 kt. Partly sunny. Seas around 3 ft.
Tonight
SW wind 12 to 15 kt becoming WNW 10 to 13 kt after midnight. Winds could gust as high as 25 kt. A chance of rain, mainly after 5am. Seas 2 to 3 ft.
Tuesday
E wind around 10 kt. Rain likely, mainly between 8am and 3pm. Seas around 2 ft.
Tuesday Night
NE wind 10 to 15 kt becoming SSW after midnight. Winds could gust as high as 25 kt. A chance of rain. Patchy fog after 11pm. Seas 2 to 3 ft.
Wednesday
SW wind 15 to 20 kt becoming W in the afternoon. Winds could gust as high as 25 kt. A chance of rain. Seas around 4 ft.
Wednesday Night
NNW wind around 15 kt becoming NE after midnight. Winds could gust as high as 20 kt. A chance of rain before 10pm, then a chance of rain after 3am. Seas 2 to 3 ft.
Thursday
ENE wind 15 to 20 kt. A chance of rain and snow before 11am, then a chance of rain. Seas around 2 ft.
Thursday Night
E wind around 15 kt, with gusts as high as 20 kt. Rain likely. Seas around 2 ft.
Friday
E wind 10 to 15 kt, with gusts as high as 20 kt. Rain likely. Seas 2 to 3 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: 2:27 am EDT Mar 30, 2026
Forecast Valid: 5am EDT Mar 30, 2026-6pm EDT Apr 5, 2026
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