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Gray/Portland, ME Local Forecast Office

9NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Thanksgiving Day

      Thanksgiving Day:WSW wind around 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas around 3 ft.

      High: 46 °F

      WSW 15kt
      3ft

    • Tonight

      Tonight:WSW wind around 15 kt, with gusts as high as 25 kt. Mostly cloudy, then gradually becoming mostly clear. Seas 2 to 3 ft.

      Low: 37 °F

      WSW 15kt
      2-3ft

    • Friday

      Friday:WSW wind 15 to 20 kt increasing to 20 to 25 kt in the afternoon. Winds could gust as high as 35 kt. Mostly sunny. Seas around 3 ft.

      High: 42 °F

      ⇑WSW 25kt
      3ft

    • Friday Night

      Friday Night:W wind around 20 kt, with gusts as high as 30 kt. Partly cloudy. Seas 2 to 3 ft.

      Low: 35 °F

      W 20kt
      2-3ft

    • Saturday

      Saturday:WNW wind 17 to 20 kt decreasing to 15 to 18 kt in the afternoon. Sunny. Seas around 2 ft.

      High: 39 °F

      WNW 20kt⇓
      2ft

    • Saturday Night

      Saturday Night:WNW wind 7 to 10 kt becoming NW 5 to 8 kt after midnight. Mostly cloudy. Seas 1 to 2 ft.

      Low: 35 °F

      WNW 10kt⇓
      1-2ft

    • Sunday

      Sunday:S wind 5 to 10 kt increasing to 20 to 25 kt. Rain likely, mainly after 2pm.   Seas 1 ft building to 3 ft.

      High: 48 °F

      ⇑S 25kt
      Waves Building3ft

    • Sunday Night

      Sunday Night:S wind around 20 kt becoming W after midnight. Winds could gust as high as 25 kt. Rain likely.   Seas around 4 ft.

      Low: 39 °F

      S 20kt
      4ft

    • Monday

      Monday:WNW wind around 15 kt, with gusts as high as 20 kt. Mostly sunny. Seas 2 to 3 ft.

      High: 40 °F

      WNW 15kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:02 pm EST Nov 27, 2025
Forecast Valid: 2pm EST Nov 27, 2025-6pm EST Dec 3, 2025

View Nearby Observations

Detailed Forecast


Thanksgiving Day
WSW wind around 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas around 3 ft.
Tonight
WSW wind around 15 kt, with gusts as high as 25 kt. Mostly cloudy, then gradually becoming mostly clear. Seas 2 to 3 ft.
Friday
WSW wind 15 to 20 kt increasing to 20 to 25 kt in the afternoon. Winds could gust as high as 35 kt. Mostly sunny. Seas around 3 ft.
Friday Night
W wind around 20 kt, with gusts as high as 30 kt. Partly cloudy. Seas 2 to 3 ft.
Saturday
WNW wind 17 to 20 kt decreasing to 15 to 18 kt in the afternoon. Sunny. Seas around 2 ft.
Saturday Night
WNW wind 7 to 10 kt becoming NW 5 to 8 kt after midnight. Mostly cloudy. Seas 1 to 2 ft.
Sunday
S wind 5 to 10 kt increasing to 20 to 25 kt. Rain likely, mainly after 2pm. Seas 1 ft building to 3 ft.
Sunday Night
S wind around 20 kt becoming W after midnight. Winds could gust as high as 25 kt. Rain likely. Seas around 4 ft.
Monday
WNW wind around 15 kt, with gusts as high as 20 kt. Mostly sunny. 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: 12:02 pm EST Nov 27, 2025
Forecast Valid: 2pm EST Nov 27, 2025-6pm EST Dec 3, 2025
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