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Gray/Portland, ME Local Forecast Office

4NM E Portsmouth NH

Marine Point Forecast

[NOTICE]

Overnight
Low: 20 °F
NE 20kt
1ft
Monday
High: 25 °F
NE 20kt⇓
1ft
Monday Night
Low: 12 °F
WNW 15kt
1ft
Tuesday
High: 23 °F
WNW 15kt
2ft
Tuesday Night
Low: 10 °F
W 10kt
1-2ft
Wednesday
High: 23 °F
WNW 10kt
1ft
Wednesday Night
Low: 11 °F
W 10kt
1ft
Thursday
High: 22 °F
NNW 10kt
1ft
Thursday Night
Low: 7 °F
WNW 15kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:28 pm EST Jan 25, 2026
Forecast Valid: 11pm EST Jan 25, 2026-6pm EST Feb 1, 2026

View Nearby Observations

Detailed Forecast

Overnight

NE wind around 20 kt, with gusts as high as 30 kt. Snow. The snow could be heavy at times. Seas around 1 ft.

Monday

NE wind 17 to 20 kt becoming N 15 to 18 kt in the afternoon. Winds could gust as high as 25 kt. Snow. The snow could be heavy at times. Widespread freezing spray before 4pm. Seas around 1 ft.

Monday Night

NNW wind 10 to 15 kt becoming WNW after midnight. Winds could gust as high as 25 kt. Snow likely, mainly before 1am. Widespread freezing spray. Seas around 1 ft.

Tuesday

WNW wind 10 to 15 kt becoming WSW in the afternoon. Widespread freezing spray before 2pm. Increasing clouds. Seas around 2 ft.

Tuesday Night

WSW wind around 10 kt becoming WNW after midnight. Widespread freezing spray after 8pm. Partly cloudy. Seas 1 to 2 ft.

Wednesday

WNW wind around 10 kt. Widespread freezing spray before 2pm. Sunny. Seas around 1 ft.

Wednesday Night

W wind around 10 kt. Mostly cloudy. Seas around 1 ft.

Thursday

NNW wind around 10 kt. Mostly cloudy. Seas around 1 ft.

Thursday Night

WNW wind 10 to 15 kt. Partly cloudy. 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.