For More Weather Information:

Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Tonight
Low: 30 °F
N 10kt
2ft
Sunday
High: 34 °F
NNW 15kt
2ft
Sunday Night
Low: 14 °F
NNW 20kt
2-3ft
Monday
High: 26 °F
NNW 10kt
2ft
Monday Night
Low: 22 °F
⇑SW 15kt
2ft
Tuesday
High: 39 °F
SSW 20kt
2-3ft
Tuesday Night
Low: 36 °F
S 15kt
3-4ft
Wednesday
High: 43 °F
NW 10kt
2-3ft
Wednesday Night
Low: 37 °F
S 10kt
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:28 pm EST Feb 28, 2026
Forecast Valid: 10pm EST Feb 28, 2026-6pm EST Mar 7, 2026

View Nearby Observations

Detailed Forecast

Tonight

WSW wind around 10 kt becoming N after midnight. A slight chance of snow after 5am. Seas around 2 ft.

Sunday

NNE wind 10 to 15 kt becoming NNW in the afternoon. Snow likely, mainly before 2pm. Seas around 2 ft.

Sunday Night

NNW wind 15 to 20 kt. Widespread freezing spray after 9pm. Mostly clear. Seas 2 to 3 ft.

Monday

NNW wind 5 to 10 kt becoming WNW in the afternoon. Widespread freezing spray before 1pm. Sunny. Seas around 2 ft.

Monday Night

W wind 10 to 13 kt becoming SW 12 to 15 kt after midnight. Winds could gust as high as 20 kt. Widespread freezing spray between midnight and 1am, then Widespread freezing spray after 3am. Mostly clear. Seas around 2 ft.

Tuesday

SSW wind 15 to 20 kt, with gusts as high as 25 kt. A chance of snow after 2pm, mixing with rain after 3pm. Widespread freezing spray before 9am. Seas 2 to 3 ft.

Tuesday Night

S wind around 15 kt becoming W after midnight. Winds could gust as high as 20 kt. Rain and snow before 2am, then rain between 2am and 5am, then rain and snow after 5am. Seas 3 to 4 ft.

Wednesday

NW wind around 10 kt becoming SE in the afternoon. Rain and snow likely before 8am, then a chance of rain between 8am and 10am. Seas 2 to 3 ft.

Wednesday Night

S wind around 10 kt. A chance of rain. 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.