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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Today

      Today:SW wind around 10 kt. Partly sunny. Seas around 1 ft.

      High: 48 °F

      SW 10kt
      1ft

    • Tonight

      Tonight:SW wind 5 to 10 kt becoming W after midnight. Mostly cloudy. Seas 1 to 2 ft.

      Low: 40 °F

      SW 10kt
      1-2ft

    • Saturday

      Saturday:NW wind 5 to 10 kt. Mostly cloudy, then gradually becoming sunny. Seas around 1 ft.

      High: 47 °F

      NW 10kt
      1ft

    • Saturday Night

      Saturday Night:WNW wind 5 to 10 kt. Mostly clear. Seas around 1 ft.

      Low: 32 °F

      WNW 10kt
      1ft

    • Sunday

      Sunday:Variable winds 5 kt or less. Partly sunny. Seas around 1 ft.

      High: 42 °F

      Light Wind
      1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.

      Low: 36 °F

      Light Wind
      1ft

    • Monday

      Monday:WNW wind around 10 kt. Sunny. Seas around 1 ft.

      High: 47 °F

      WNW 10kt
      1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.

      Low: 35 °F

      Light Wind
      1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Scattered showers.   Seas around 1 ft.

      High: 48 °F

      Light Wind
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:43 am EST Nov 21, 2025
Forecast Valid: 11am EST Nov 21, 2025-6pm EST Nov 27, 2025

View Nearby Observations

Detailed Forecast


Today
SW wind around 10 kt. Partly sunny. Seas around 1 ft.
Tonight
SW wind 5 to 10 kt becoming W after midnight. Mostly cloudy. Seas 1 to 2 ft.
Saturday
NW wind 5 to 10 kt. Mostly cloudy, then gradually becoming sunny. Seas around 1 ft.
Saturday Night
WNW wind 5 to 10 kt. Mostly clear. Seas around 1 ft.
Sunday
Variable winds 5 kt or less. Partly sunny. Seas around 1 ft.
Sunday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.
Monday
WNW wind around 10 kt. Sunny. Seas around 1 ft.
Monday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.
Tuesday
Variable winds 5 kt or less. Scattered showers. 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: 42.98°N 70.74°W
Last Update: 9:43 am EST Nov 21, 2025
Forecast Valid: 11am EST Nov 21, 2025-6pm EST Nov 27, 2025
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