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Gray/Portland, ME Local Forecast Office

23NM S Portland ME

Marine Point Forecast

[NOTICE]

Today
High: 39 °F
NNW 15kt⇓
4-5ft
Tonight
Low: 36 °F
⇑WSW 15kt
5ft
Thursday
High: 38 °F
⇑WNW 25kt
5ft
Thursday Night
Low: 17 °F
WNW 30kt⇓
6ft
Friday
High: 31 °F
WNW 15kt
2-3ft
Friday Night
Low: 28 °F
SW 15kt
2-3ft
Saturday
High: 37 °F
NW 10kt
2ft
Saturday Night
Low: 31 °F
W 10kt
2ft
Sunday
High: 35 °F
NW 10kt
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:13 am EST Dec 3, 2025
Forecast Valid: 9am EST Dec 3, 2025-6pm EST Dec 9, 2025

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Detailed Forecast

Today

NNW wind 10 to 15 kt becoming WNW 5 to 8 kt in the afternoon. Winds could gust as high as 25 kt. Mostly sunny. Seas 4 to 5 ft.

Tonight

WSW wind 10 to 13 kt increasing to 12 to 15 kt after midnight. Winds could gust as high as 20 kt. Mostly cloudy. Seas around 5 ft.

Thursday

WSW wind 15 to 20 kt becoming WNW 20 to 25 kt in the afternoon. Winds could gust as high as 35 kt. A chance of rain and snow showers before 3pm, then snow showers likely. Seas around 5 ft.

Thursday Night

WNW wind 25 to 30 kt decreasing to 20 to 25 kt after midnight. Winds could gust as high as 40 kt. A chance of snow showers before 7pm. Widespread freezing spray after 8pm. Seas 6 ft subsiding to 4 ft.

Friday

WNW wind 10 to 15 kt becoming SW in the afternoon. Winds could gust as high as 20 kt. Widespread freezing spray before 11am. Mostly sunny. Seas 2 to 3 ft.

Friday Night

SW wind 10 to 15 kt becoming WNW after midnight. Winds could gust as high as 20 kt. Mostly cloudy. Seas 2 to 3 ft.

Saturday

NW wind 5 to 10 kt becoming W in the afternoon. A chance of snow showers between 9am and 2pm, then a chance of rain showers after 2pm. Seas around 2 ft.

Saturday Night

W wind around 10 kt. Partly cloudy. Seas around 2 ft.

Sunday

NW wind around 10 kt. Mostly sunny. Seas around 2 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.