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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:SW wind 5 to 10 kt becoming W after midnight. A slight chance of snow showers after 5am. Seas 1 to 2 ft.

      Low: 27 °F

      SW 10kt
      1-2ft

    • Saturday

      Saturday:W wind 5 to 10 kt becoming SSW in the morning. A chance of rain and snow showers before 10am, then a chance of rain showers between 10am and 4pm. Seas around 1 ft.

      High: 40 °F

      SW 10kt
      1ft

    • Saturday Night

      Saturday Night:WSW wind 10 to 15 kt becoming WNW after midnight. Partly cloudy. Seas 1 to 2 ft.

      Low: 32 °F

      WNW 15kt
      1-2ft

    • Sunday

      Sunday:NW wind 10 to 15 kt decreasing to 5 to 10 kt in the afternoon. Partly sunny. Seas 1 to 2 ft.

      High: 36 °F

      NW 15kt⇓
      1-2ft

    • Sunday Night

      Sunday Night:NW wind 5 to 10 kt increasing to 10 to 15 kt after midnight. A chance of snow after 11pm. Seas 1 to 2 ft.

      Low: 25 °F

      ⇑NW 15kt
      1-2ft

    • Monday

      Monday:NW wind around 20 kt, with gusts as high as 25 kt. Mostly sunny. Seas 2 to 3 ft.

      High: 27 °F

      NW 20kt
      2-3ft

    • Monday Night

      Monday Night:NW wind around 15 kt, with gusts as high as 25 kt. Mostly clear. Seas around 2 ft.

      Low: 19 °F

      NW 15kt
      2ft

    • Tuesday

      Tuesday:WNW wind 10 to 15 kt becoming SW in the afternoon. Winds could gust as high as 20 kt. Mostly sunny. Seas 1 to 2 ft.

      High: 33 °F

      SW 15kt
      1-2ft

    • Tuesday Night

      Tuesday Night:WSW wind 15 to 20 kt. A chance of snow showers. Seas 2 to 3 ft.

      Low: 32 °F

      WSW 20kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:16 pm EST Dec 5, 2025
Forecast Valid: 8pm EST Dec 5, 2025-6pm EST Dec 12, 2025

View Nearby Observations

Detailed Forecast


Tonight
SW wind 5 to 10 kt becoming W after midnight. A slight chance of snow showers after 5am. Seas 1 to 2 ft.
Saturday
W wind 5 to 10 kt becoming SSW in the morning. A chance of rain and snow showers before 10am, then a chance of rain showers between 10am and 4pm. Seas around 1 ft.
Saturday Night
WSW wind 10 to 15 kt becoming WNW after midnight. Partly cloudy. Seas 1 to 2 ft.
Sunday
NW wind 10 to 15 kt decreasing to 5 to 10 kt in the afternoon. Partly sunny. Seas 1 to 2 ft.
Sunday Night
NW wind 5 to 10 kt increasing to 10 to 15 kt after midnight. A chance of snow after 11pm. Seas 1 to 2 ft.
Monday
NW wind around 20 kt, with gusts as high as 25 kt. Mostly sunny. Seas 2 to 3 ft.
Monday Night
NW wind around 15 kt, with gusts as high as 25 kt. Mostly clear. Seas around 2 ft.
Tuesday
WNW wind 10 to 15 kt becoming SW in the afternoon. Winds could gust as high as 20 kt. Mostly sunny. Seas 1 to 2 ft.
Tuesday Night
WSW wind 15 to 20 kt. A chance of snow showers. 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: 6:16 pm EST Dec 5, 2025
Forecast Valid: 8pm EST Dec 5, 2025-6pm EST Dec 12, 2025
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