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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

This Afternoon
High: 24 °F
WNW 15kt
1ft
Tonight
Low: 8 °F
WNW 20kt
2ft
Friday
High: 17 °F
WNW 20kt
2ft
Friday Night
Low: 6 °F
WNW 20kt⇓
1-2ft
Saturday
High: 23 °F
WNW 10kt⇓
1ft
Saturday Night
Low: 17 °F
⇑NNE 20kt
1-2ft
Sunday
High: 28 °F
⇑N 30kt
4ft
Sunday Night
Low: 22 °F
N 30kt⇓
5-6ft
Monday
High: 33 °F
NW 20kt
4-5ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:40 pm EST Jan 29, 2026
Forecast Valid: 3pm EST Jan 29, 2026-6pm EST Feb 5, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

WNW wind around 15 kt, with gusts as high as 20 kt. Widespread freezing spray. Mostly sunny. Seas around 1 ft.

Tonight

WNW wind 15 to 20 kt, with gusts as high as 30 kt. Widespread freezing spray. Mostly clear. Seas around 2 ft.

Friday

WNW wind around 20 kt, with gusts as high as 30 kt. Widespread freezing spray. Sunny. Seas around 2 ft.

Friday Night

WNW wind 15 to 20 kt decreasing to 10 to 15 kt after midnight. Widespread freezing spray. Mostly clear. Seas 1 to 2 ft.

Saturday

WNW 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 5 to 8 kt becoming NNE 15 to 20 kt. Winds could gust as high as 30 kt. Widespread freezing spray after 9pm. Mostly cloudy. Seas 1 to 2 ft.

Sunday

N wind 25 to 28 kt increasing to 27 to 30 kt in the afternoon. Winds could gust as high as 40 kt. A chance of snow after 8am. Widespread freezing spray before 4pm. Seas 2 ft building to 4 ft.

Sunday Night

N 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. Widespread freezing spray after 11pm. Seas 5 to 6 ft.

Monday

NW wind 15 to 20 kt, with gusts as high as 25 kt. Mostly sunny. 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.