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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Saturday
High: 23 °F
NW 10kt⇓
1ft
Saturday Night
Low: 18 °F
⇑NNE 20kt
1-2ft
Sunday
High: 29 °F
N 25kt
2-3ft
Sunday Night
Low: 21 °F
N 30kt⇓
3-4ft
Monday
High: 32 °F
NW 15kt⇓
3-4ft
Monday Night
Low: 19 °F
NW 15kt
2-3ft
Tuesday
High: 32 °F
Light Wind
2ft
Tuesday Night
Low: 22 °F
WNW 10kt
1-2ft
Wednesday
High: 32 °F
NW 10kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:42 am EST Jan 31, 2026
Forecast Valid: 3am EST Jan 31, 2026-6pm EST Feb 6, 2026

View Nearby Observations

Detailed Forecast

Saturday

NW wind 7 to 10 kt decreasing to 5 to 8 kt in the afternoon. Widespread freezing spray before noon. Mostly sunny. Seas around 1 ft.

Saturday Night

NNW wind 10 to 15 kt becoming NNE 15 to 20 kt. Winds could gust as high as 25 kt. Widespread freezing spray after 8pm. Increasing clouds. Seas 1 to 2 ft.

Sunday

N wind 20 to 25 kt, with gusts as high as 35 kt. Widespread freezing spray before 4pm. Cloudy. Seas 2 to 3 ft.

Sunday Night

N wind 25 to 30 kt becoming NW 20 to 25 kt after midnight. Widespread freezing spray after 11pm. Mostly cloudy. Seas 3 to 4 ft.

Monday

NW wind 12 to 15 kt decreasing to 10 to 13 kt in the afternoon. Winds could gust as high as 20 kt. Widespread freezing spray before 11am. Mostly sunny. Seas 3 to 4 ft.

Monday Night

NW wind 10 to 15 kt. Partly cloudy. Seas 2 to 3 ft.

Tuesday

Variable winds 5 kt or less. Widespread freezing spray before 7am. Sunny. Seas around 2 ft.

Tuesday Night

W wind 5 to 10 kt becoming NW after midnight. Partly cloudy. Seas 1 to 2 ft.

Wednesday

NW wind 5 to 10 kt. Mostly sunny. Seas around 1 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.