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Gray/Portland, ME Local Forecast Office

10NM S Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Veterans Day

      Veterans Day:W wind 15 to 20 kt. Increasing clouds. Seas around 3 ft.

      High: 40 °F

      W 20kt
      3ft

    • Tonight

      Tonight:W wind 15 to 20 kt, with gusts as high as 30 kt. Partly cloudy. Seas 2 to 3 ft.

      Low: 36 °F

      W 20kt
      2-3ft

    • Wednesday

      Wednesday:SW wind 10 to 15 kt. Mostly cloudy. Seas around 2 ft.

      High: 44 °F

      SW 15kt
      2ft

    • Wednesday Night

      Wednesday Night:W wind around 10 kt. Partly cloudy. Seas 1 to 2 ft.

      Low: 38 °F

      W 10kt
      1-2ft

    • Thursday

      Thursday:W wind 10 to 15 kt. Partly sunny. Seas around 1 ft.

      High: 48 °F

      W 15kt
      1ft

    • Thursday Night

      Thursday Night:WNW wind around 10 kt. Partly cloudy. Seas around 1 ft.

      Low: 37 °F

      WNW 10kt
      1ft

    • Friday

      Friday:NW wind 10 to 15 kt. Mostly sunny. Seas around 1 ft.

      High: 44 °F

      NW 15kt
      1ft

    • Friday Night

      Friday Night:NW wind around 10 kt. Mostly clear. Seas around 1 ft.

      Low: 34 °F

      NW 10kt
      1ft

    • Saturday

      Saturday:NW wind 10 to 15 kt. Sunny. Seas around 1 ft.

      High: 42 °F

      NW 15kt
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:49 am EST Nov 11, 2025
Forecast Valid: 9am EST Nov 11, 2025-6pm EST Nov 17, 2025

View Nearby Observations

Detailed Forecast


Veterans Day
W wind 15 to 20 kt. Increasing clouds. Seas around 3 ft.
Tonight
W wind 15 to 20 kt, with gusts as high as 30 kt. Partly cloudy. Seas 2 to 3 ft.
Wednesday
SW wind 10 to 15 kt. Mostly cloudy. Seas around 2 ft.
Wednesday Night
W wind around 10 kt. Partly cloudy. Seas 1 to 2 ft.
Thursday
W wind 10 to 15 kt. Partly sunny. Seas around 1 ft.
Thursday Night
WNW wind around 10 kt. Partly cloudy. Seas around 1 ft.
Friday
NW wind 10 to 15 kt. Mostly sunny. Seas around 1 ft.
Friday Night
NW wind around 10 kt. Mostly clear. Seas around 1 ft.
Saturday
NW wind 10 to 15 kt. Sunny. Seas around 1 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: 42.9°N 70.79°W
Last Update: 5:49 am EST Nov 11, 2025
Forecast Valid: 9am EST Nov 11, 2025-6pm EST Nov 17, 2025
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