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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Monday
High: 28 °F
NNE 25kt⇓
6ft
Monday Night
Low: 16 °F
⇑NW 25kt
4-5ft
Tuesday
High: 24 °F
WNW 20kt⇓
3-4ft
Tuesday Night
Low: 15 °F
W 15kt
2ft
Wednesday
High: 24 °F
W 15kt
2ft
Wednesday Night
Low: 14 °F
WNW 10kt
1-2ft
Thursday
High: 22 °F
WNW 15kt
1ft
Thursday Night
Low: 9 °F
WNW 20kt
2ft
Friday
High: 20 °F
WNW 15kt
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:33 am EST Jan 26, 2026
Forecast Valid: 4am EST Jan 26, 2026-6pm EST Feb 1, 2026

View Nearby Observations

Detailed Forecast

Monday

NNE wind 22 to 25 kt decreasing to 20 to 23 kt in the afternoon. Winds could gust as high as 35 kt. Snow, mainly before 2pm. Widespread freezing spray between 8am and 3pm, then Widespread freezing spray between 4pm and 5pm. Seas 6 ft subsiding to 4 ft.

Monday Night

N wind 20 to 23 kt becoming NW 22 to 25 kt in the evening. Winds could gust as high as 35 kt. Snow, mainly before 11pm. Widespread freezing spray after 7pm. Seas 4 to 5 ft.

Tuesday

WNW wind 17 to 20 kt becoming W 15 to 18 kt in the afternoon. Winds could gust as high as 30 kt. Widespread freezing spray. Increasing clouds. Seas 3 to 4 ft.

Tuesday Night

W wind around 15 kt, with gusts as high as 25 kt. Widespread freezing spray. Mostly cloudy, then gradually becoming mostly clear. Seas around 2 ft.

Wednesday

W wind around 15 kt, with gusts as high as 25 kt. Widespread freezing spray before 2pm. Sunny. Seas around 2 ft.

Wednesday Night

WNW wind around 10 kt. Mostly cloudy. Seas 1 to 2 ft.

Thursday

WNW wind around 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas around 1 ft.

Thursday Night

WNW wind 15 to 20 kt, with gusts as high as 25 kt. Partly cloudy. Seas around 2 ft.

Friday

WNW wind 10 to 15 kt, with gusts as high as 25 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.