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Gray/Portland, ME Local Forecast Office

23NM S Portland ME

Marine Point Forecast

[NOTICE]

Tonight
Low: 35 °F
NW 15kt⇓
1-2ft
Sunday
High: 48 °F
⇑S 25kt
6ft
Sunday Night
Low: 38 °F
S 25kt
6-7ft
Monday
High: 40 °F
W 20kt
6ft
Monday Night
Low: 32 °F
NNW 10kt
2-3ft
Tuesday
High: 40 °F
SSW 10kt
1-2ft
Tuesday Night
Low: 34 °F
⇑N 25kt
4ft
Wednesday
High: 39 °F
NNW 20kt⇓
5ft
Wednesday Night
Low: 35 °F
⇑WSW 20kt
4-5ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:54 pm EST Nov 29, 2025
Forecast Valid: 8pm EST Nov 29, 2025-6pm EST Dec 6, 2025

View Nearby Observations

Detailed Forecast

Tonight

NW wind 10 to 15 kt becoming N 5 to 8 kt after midnight. Increasing clouds. Seas 1 to 2 ft.

Sunday

S wind 10 to 15 kt increasing to 20 to 25 kt. Winds could gust as high as 35 kt. Rain, mainly after 3pm. Seas 1 ft building to 6 ft.

Sunday Night

S wind 20 to 25 kt becoming W after midnight. Winds could gust as high as 30 kt. Rain, mainly before midnight. Seas 6 to 7 ft.

Monday

W wind 15 to 20 kt becoming NW in the afternoon. Winds could gust as high as 30 kt. Sunny. Seas 6 ft subsiding to 4 ft.

Monday Night

NNW wind 5 to 10 kt becoming SSE after midnight. Mostly cloudy. Seas 2 to 3 ft.

Tuesday

SSW wind around 10 kt becoming ESE in the afternoon. A chance of snow before 10am, then rain and snow likely between 10am and 3pm, then rain after 3pm. Seas 1 to 2 ft.

Tuesday Night

N wind 10 to 15 kt increasing to 20 to 25 kt. Winds could gust as high as 35 kt. Rain and snow before 4am, then a chance of snow. Seas 2 ft building to 4 ft.

Wednesday

NNW wind 15 to 20 kt becoming WNW 10 to 15 kt in the afternoon. Winds could gust as high as 30 kt. Mostly sunny. Seas around 5 ft.

Wednesday Night

WSW wind 10 to 15 kt increasing to 15 to 20 kt after midnight. Mostly cloudy. Seas 4 to 5 ft.

*Notices:

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.
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.