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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SSW wind around 10 kt. Mostly sunny. Seas 2 to 3 ft.

      High: 47 °F

      SSW 10kt
      2-3ft

    • Tonight

      Tonight:W wind 10 to 15 kt, with gusts as high as 20 kt. Mostly cloudy, then gradually becoming mostly clear. Seas 2 to 3 ft.

      Low: 22 °F

      W 15kt
      2-3ft

    • Friday

      Friday:W wind around 15 kt, with gusts as high as 25 kt. Widespread freezing spray before 10am. Sunny. Seas around 2 ft.

      High: 32 °F

      W 15kt
      2ft

    • Friday Night

      Friday Night:WSW wind 5 to 10 kt becoming SSW after midnight. Mostly cloudy. Seas around 2 ft.

      Low: 27 °F

      WSW 10kt
      2ft

    • Saturday

      Saturday:SSW wind 5 to 10 kt. A chance of rain and snow before 1pm, then rain likely.   Seas around 3 ft.

      High: 39 °F

      SSW 10kt
      3ft

    • Saturday Night

      Saturday Night:WSW wind 5 to 10 kt. A chance of rain before 7pm.   Seas around 2 ft.

      Low: 32 °F

      WSW 10kt
      2ft

    • Sunday

      Sunday:SW wind 5 to 10 kt becoming W in the afternoon. Mostly cloudy. Seas around 2 ft.

      High: 38 °F

      WSW 10kt
      2ft

    • Sunday Night

      Sunday Night:NW wind 5 to 10 kt. A chance of snow.   Seas around 2 ft.

      Low: 26 °F

      NW 10kt
      2ft

    • M.L.King Day

      M.L.King Day:W wind 10 to 15 kt becoming WSW in the afternoon. Mostly sunny. Seas around 2 ft.

      High: 34 °F

      WSW 15kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:45 pm EST Jan 15, 2026
Forecast Valid: 2pm EST Jan 15, 2026-6pm EST Jan 21, 2026

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Detailed Forecast


This Afternoon
SSW wind around 10 kt. Mostly sunny. Seas 2 to 3 ft.
Tonight
W wind 10 to 15 kt, with gusts as high as 20 kt. Mostly cloudy, then gradually becoming mostly clear. Seas 2 to 3 ft.
Friday
W wind around 15 kt, with gusts as high as 25 kt. Widespread freezing spray before 10am. Sunny. Seas around 2 ft.
Friday Night
WSW wind 5 to 10 kt becoming SSW after midnight. Mostly cloudy. Seas around 2 ft.
Saturday
SSW wind 5 to 10 kt. A chance of rain and snow before 1pm, then rain likely. Seas around 3 ft.
Saturday Night
WSW wind 5 to 10 kt. A chance of rain before 7pm. Seas around 2 ft.
Sunday
SW wind 5 to 10 kt becoming W in the afternoon. Mostly cloudy. Seas around 2 ft.
Sunday Night
NW wind 5 to 10 kt. A chance of snow. Seas around 2 ft.
M.L.King Day
W wind 10 to 15 kt becoming WSW in the afternoon. Mostly sunny. 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: 42.98°N 70.74°W
Last Update: 12:45 pm EST Jan 15, 2026
Forecast Valid: 2pm EST Jan 15, 2026-6pm EST Jan 21, 2026
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