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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Tonight
Low: 30 °F
N 15kt⇓
2-3ft
Christmas Day
High: 38 °F
⇑NW 20kt
2-3ft
Thursday Night
Low: 17 °F
NNW 25kt
3ft
Friday
High: 24 °F
NNW 15kt⇓
2-3ft
Friday Night
Low: 22 °F
N 15kt
2ft
Saturday
High: 27 °F
N 15kt
2ft
Saturday Night
Low: 23 °F
N 10kt
1-2ft
Sunday
High: 36 °F
WNW 10kt
1-2ft
Sunday Night
Low: 35 °F
S 15kt
2-3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:24 pm EST Dec 24, 2025
Forecast Valid: 5pm EST Dec 24, 2025-6pm EST Dec 31, 2025

View Nearby Observations

Detailed Forecast

Tonight

N wind 10 to 15 kt becoming NW 5 to 8 kt in the evening. A slight chance of snow showers after 5am. Seas 2 to 3 ft.

Christmas Day

SW wind 15 to 18 kt becoming NW 17 to 20 kt in the afternoon. Winds could gust as high as 30 kt. A chance of snow showers, mainly before 8am. Seas 2 to 3 ft.

Thursday Night

NNW wind 20 to 25 kt, with gusts as high as 30 kt. Widespread freezing spray after 10pm. Mostly clear. Seas around 3 ft.

Friday

NNW wind 12 to 15 kt decreasing to 10 to 13 kt in the afternoon. Winds could gust as high as 25 kt. Widespread freezing spray before 1pm. Increasing clouds. Seas 2 to 3 ft.

Friday Night

N wind 10 to 15 kt. Scattered snow showers after 4am. Seas around 2 ft.

Saturday

N wind 10 to 15 kt. Scattered snow showers before 7am. Seas around 2 ft.

Saturday Night

N wind around 10 kt becoming NW after midnight. Mostly clear. Seas 1 to 2 ft.

Sunday

WNW wind 5 to 10 kt becoming WSW in the afternoon. Partly sunny. Seas 1 to 2 ft.

Sunday Night

WSW wind 10 to 15 kt becoming S after midnight. Rain. Seas 2 to 3 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.