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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:WNW wind around 10 kt. Mostly sunny. Seas around 1 ft.

      High: 24 °F

      WNW 10kt
      1ft

    • Tonight

      Tonight:WNW wind 10 to 15 kt. Widespread freezing spray. Mostly clear. Seas around 1 ft.

      Low: 5 °F

      WNW 15kt
      1ft

    • Friday

      Friday:WNW wind around 15 kt. Widespread freezing spray. Sunny. Seas around 1 ft.

      High: 16 °F

      WNW 15kt
      1ft

    • Friday Night

      Friday Night:WNW wind around 10 kt. Widespread freezing spray. Mostly clear. Seas around 1 ft.

      Low: 2 °F

      WNW 10kt
      1ft

    • Saturday

      Saturday:Variable winds 5 kt or less. Widespread freezing spray before noon. Sunny. Seas 1 ft or less.

      High: 21 °F

      Light Wind
      < 1ft

    • Saturday Night

      Saturday Night:N wind 5 to 10 kt increasing to 10 to 15 kt after midnight. Widespread freezing spray after 9pm. Mostly cloudy. Seas 1 ft or less.

      Low: 12 °F

      ⇑N 15kt
      < 1ft

    • Sunday

      Sunday:N wind 15 to 20 kt, with gusts as high as 25 kt. A chance of snow after 8am.  Widespread freezing spray before 4pm.  Seas 2 ft building to 4 ft.

      High: 27 °F

      N 20kt
      Waves Building4ft

    • Sunday Night

      Sunday Night:N wind 15 to 20 kt becoming NW after midnight. Winds could gust as high as 25 kt. A chance of snow.  Widespread freezing spray.  Seas 4 ft building to 6 ft.

      Low: 18 °F

      N 20kt
      Waves Building6ft

    • Monday

      Monday:NW wind around 10 kt. Mostly sunny. Seas around 7 ft.

      High: 33 °F

      NW 10kt
      7ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:40 pm EST Jan 29, 2026
Forecast Valid: 3pm EST Jan 29, 2026-6pm EST Feb 5, 2026

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Detailed Forecast


This Afternoon
WNW wind around 10 kt. Mostly sunny. Seas around 1 ft.
Tonight
WNW wind 10 to 15 kt. Widespread freezing spray. Mostly clear. Seas around 1 ft.
Friday
WNW wind around 15 kt. Widespread freezing spray. Sunny. Seas around 1 ft.
Friday Night
WNW wind around 10 kt. Widespread freezing spray. Mostly clear. Seas around 1 ft.
Saturday
Variable winds 5 kt or less. Widespread freezing spray before noon. Sunny. Seas 1 ft or less.
Saturday Night
N wind 5 to 10 kt increasing to 10 to 15 kt after midnight. Widespread freezing spray after 9pm. Mostly cloudy. Seas 1 ft or less.
Sunday
N wind 15 to 20 kt, with gusts as high as 25 kt. A chance of snow after 8am. Widespread freezing spray before 4pm. Seas 2 ft building to 4 ft.
Sunday Night
N wind 15 to 20 kt becoming NW after midnight. Winds could gust as high as 25 kt. A chance of snow. Widespread freezing spray. Seas 4 ft building to 6 ft.
Monday
NW wind around 10 kt. Mostly sunny. Seas around 7 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: 42.98°N 70.74°W
Last Update: 12:40 pm EST Jan 29, 2026
Forecast Valid: 3pm EST Jan 29, 2026-6pm EST Feb 5, 2026
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