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Hazardous Weather Conditions

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Gray/Portland, ME Local Forecast Office

9NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:SSW wind 5 to 8 kt becoming WNW 15 to 20 kt. Winds could gust as high as 25 kt. Cloudy during the early evening, then gradual clearing. Seas 1 ft building to 3 ft.

      Low: 22 °F

      ⇑WNW 20kt
      Waves Building3ft

    • Monday

      Monday:NW wind 17 to 20 kt decreasing to 15 to 18 kt in the afternoon. Winds could gust as high as 25 kt. Sunny. Seas 2 to 3 ft.

      High: 26 °F

      NW 20kt⇓
      2-3ft

    • Monday Night

      Monday Night:NW wind 10 to 15 kt. Mostly clear. Seas around 2 ft.

      Low: 20 °F

      NW 15kt
      2ft

    • Tuesday

      Tuesday:W wind 5 to 8 kt becoming SSW 10 to 15 kt in the afternoon. Increasing clouds. Seas 1 to 2 ft.

      High: 36 °F

      ⇑SSW 15kt
      1-2ft

    • Tuesday Night

      Tuesday Night:SW wind 15 to 20 kt, with gusts as high as 25 kt. A chance of snow, mixing with rain after 10pm, then gradually ending. Seas around 3 ft.

      Low: 34 °F

      SW 20kt
      3ft

    • Wednesday

      Wednesday:SSW wind 15 to 20 kt. Rain likely, mainly after 2pm. Seas 2 to 3 ft.

      High: 45 °F

      SSW 20kt
      2-3ft

    • Wednesday Night

      Wednesday Night:SW wind 15 to 20 kt. A chance of rain before 2am. Seas 2 to 3 ft.

      Low: 38 °F

      SW 20kt
      2-3ft

    • Thursday

      Thursday:W wind around 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas 2 to 3 ft.

      High: 40 °F

      W 15kt
      2-3ft

    • Thursday Night

      Thursday Night:W wind 10 to 15 kt, with gusts as high as 20 kt. Mostly cloudy. Seas around 2 ft.

      Low: 30 °F

      W 15kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:34 pm EST Dec 7, 2025
Forecast Valid: 6pm EST Dec 7, 2025-6pm EST Dec 14, 2025

View Nearby Observations

Detailed Forecast


Tonight
SSW wind 5 to 8 kt becoming WNW 15 to 20 kt. Winds could gust as high as 25 kt. Cloudy during the early evening, then gradual clearing. Seas 1 ft building to 3 ft.
Monday
NW wind 17 to 20 kt decreasing to 15 to 18 kt in the afternoon. Winds could gust as high as 25 kt. Sunny. Seas 2 to 3 ft.
Monday Night
NW wind 10 to 15 kt. Mostly clear. Seas around 2 ft.
Tuesday
W wind 5 to 8 kt becoming SSW 10 to 15 kt in the afternoon. Increasing clouds. Seas 1 to 2 ft.
Tuesday Night
SW wind 15 to 20 kt, with gusts as high as 25 kt. A chance of snow, mixing with rain after 10pm, then gradually ending. Seas around 3 ft.
Wednesday
SSW wind 15 to 20 kt. Rain likely, mainly after 2pm. Seas 2 to 3 ft.
Wednesday Night
SW wind 15 to 20 kt. A chance of rain before 2am. Seas 2 to 3 ft.
Thursday
W wind around 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas 2 to 3 ft.
Thursday Night
W wind 10 to 15 kt, with gusts as high as 20 kt. Mostly cloudy. 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: 1:34 pm EST Dec 7, 2025
Forecast Valid: 6pm EST Dec 7, 2025-6pm EST Dec 14, 2025
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