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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SSW wind around 20 kt. A chance of snow before 11pm, then a chance of rain and snow between 11pm and 1am, then a chance of rain after 1am.   Seas around 3 ft.

      Low: 30 °F

      SSW 20kt
      3ft

    • Thursday

      Thursday:SW wind 15 to 20 kt becoming W in the afternoon. Mostly sunny. Seas around 3 ft.

      High: 42 °F

      SW 20kt
      3ft

    • Thursday Night

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

      Low: 26 °F

      W 20kt
      3ft

    • Friday

      Friday:WSW wind 20 to 23 kt increasing to 22 to 25 kt in the afternoon. Winds could gust as high as 35 kt. Mostly sunny. Seas 2 to 3 ft.

      High: 30 °F

      ⇑WSW 25kt
      2-3ft

    • Friday Night

      Friday Night:W wind around 25 kt becoming NW after midnight. Winds could gust as high as 35 kt. Widespread freezing spray after 8pm. Partly cloudy. Seas around 3 ft.

      Low: 7 °F

      W 25kt
      3ft

    • Saturday

      Saturday:WNW wind 15 to 20 kt, with gusts as high as 30 kt. Widespread freezing spray. Sunny. Seas 2 to 3 ft.

      High: 14 °F

      WNW 20kt
      2-3ft

    • Saturday Night

      Saturday Night:WNW wind 15 to 20 kt. Widespread freezing spray. Mostly cloudy. Seas around 2 ft.

      Low: 10 °F

      WNW 20kt
      2ft

    • Sunday

      Sunday:NNW wind 10 to 15 kt becoming NE in the afternoon. Winds could gust as high as 25 kt. Snow likely.  Widespread freezing spray.  Seas 1 to 2 ft.

      High: 22 °F

      NE 15kt
      1-2ft

    • Sunday Night

      Sunday Night:NE wind around 20 kt, with gusts as high as 30 kt. Snow likely.   Seas around 2 ft.

      Low: 19 °F

      NE 20kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:26 pm EST Jan 21, 2026
Forecast Valid: 7pm EST Jan 21, 2026-6pm EST Jan 28, 2026

View Nearby Observations

Detailed Forecast


Tonight
SSW wind around 20 kt. A chance of snow before 11pm, then a chance of rain and snow between 11pm and 1am, then a chance of rain after 1am. Seas around 3 ft.
Thursday
SW wind 15 to 20 kt becoming W in the afternoon. Mostly sunny. Seas around 3 ft.
Thursday Night
W wind around 20 kt, with gusts as high as 30 kt. Partly cloudy. Seas around 3 ft.
Friday
WSW wind 20 to 23 kt increasing to 22 to 25 kt in the afternoon. Winds could gust as high as 35 kt. Mostly sunny. Seas 2 to 3 ft.
Friday Night
W wind around 25 kt becoming NW after midnight. Winds could gust as high as 35 kt. Widespread freezing spray after 8pm. Partly cloudy. Seas around 3 ft.
Saturday
WNW wind 15 to 20 kt, with gusts as high as 30 kt. Widespread freezing spray. Sunny. Seas 2 to 3 ft.
Saturday Night
WNW wind 15 to 20 kt. Widespread freezing spray. Mostly cloudy. Seas around 2 ft.
Sunday
NNW wind 10 to 15 kt becoming NE in the afternoon. Winds could gust as high as 25 kt. Snow likely. Widespread freezing spray. Seas 1 to 2 ft.
Sunday Night
NE wind around 20 kt, with gusts as high as 30 kt. Snow likely. 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: 6:26 pm EST Jan 21, 2026
Forecast Valid: 7pm EST Jan 21, 2026-6pm EST Jan 28, 2026
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