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Gray/Portland, ME Local Forecast Office

23NM S Portland ME

Marine Point Forecast

[NOTICE]

Overnight
Low: 38 °F
W 20kt
5-6ft
Monday
High: 40 °F
W 20kt⇓
4-5ft
Monday Night
Low: 32 °F
NNW 10kt
2-3ft
Tuesday
High: 40 °F
ENE 10kt
2ft
Tuesday Night
Low: 34 °F
⇑N 25kt
2-3ft
Wednesday
High: 38 °F
NNW 20kt⇓
4-5ft
Wednesday Night
Low: 36 °F
⇑SW 20kt
5ft
Thursday
High: 39 °F
⇑WSW 25kt
5-6ft
Thursday Night
Low: 19 °F
WNW 25kt
5-6ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:58 pm EST Nov 30, 2025
Forecast Valid: 11pm EST Nov 30, 2025-6pm EST Dec 7, 2025

View Nearby Observations

Detailed Forecast

Overnight

W wind around 20 kt, with gusts as high as 25 kt. A slight chance of rain before midnight. Seas 5 to 6 ft.

Monday

W wind 17 to 20 kt becoming NW 15 to 18 kt in the afternoon. Winds could gust as high as 25 kt. Sunny. Seas 4 to 5 ft.

Monday Night

NNW wind 5 to 10 kt becoming SSE after midnight. Increasing clouds. Seas 2 to 3 ft.

Tuesday

S wind around 10 kt becoming ENE in the afternoon. Snow before noon, then rain and snow between noon and 1pm, then rain after 1pm. Seas around 2 ft.

Tuesday Night

NE wind 15 to 20 kt becoming N 20 to 25 kt after midnight. Winds could gust as high as 30 kt. Rain, possibly mixing with snow after 11pm, then gradually ending. Seas 2 to 3 ft.

Wednesday

NNW wind 15 to 20 kt becoming W 10 to 15 kt. Mostly sunny. Seas 4 to 5 ft.

Wednesday Night

SW wind 10 to 15 kt increasing to 15 to 20 kt after midnight. Winds could gust as high as 25 kt. Mostly cloudy. Seas around 5 ft.

Thursday

WSW wind 20 to 23 kt increasing to 22 to 25 kt in the afternoon. Winds could gust as high as 35 kt. Mostly cloudy. Seas 5 to 6 ft.

Thursday Night

WNW wind 20 to 25 kt, with gusts as high as 35 kt. Partly cloudy. Seas 5 to 6 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.