For More Weather Information:

Gray/Portland, ME Local Forecast Office

4NM E Portsmouth NH

Marine Point Forecast

[NOTICE]

Tonight
Low: 27 °F
NW 10kt
1ft
Tuesday
High: 40 °F
E 10kt
1ft
Tuesday Night
Low: 30 °F
N 15kt
1-2ft
Wednesday
High: 37 °F
NW 10kt⇓
1ft
Wednesday Night
Low: 31 °F
SW 10kt
1ft
Thursday
High: 38 °F
⇑W 20kt
1ft
Thursday Night
Low: 13 °F
WNW 20kt⇓
1ft
Friday
High: 28 °F
WNW 10kt
1ft
Friday Night
Low: 23 °F
WSW 10kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:23 pm EST Dec 1, 2025
Forecast Valid: 4pm EST Dec 1, 2025-6pm EST Dec 8, 2025

View Nearby Observations

Detailed Forecast

Tonight

NW wind 5 to 10 kt becoming ESE after midnight. Increasing clouds. Seas around 1 ft.

Tuesday

SSW wind 5 to 10 kt becoming ENE in the afternoon. Rain and snow, becoming all rain after noon. Seas around 1 ft.

Tuesday Night

NE wind 10 to 15 kt becoming NNW after midnight. Winds could gust as high as 25 kt. Rain before 11pm, then rain and snow likely between 11pm and 4am, then a slight chance of snow after 4am. Seas 1 to 2 ft.

Wednesday

NW wind 7 to 10 kt becoming W 5 to 8 kt in the afternoon. Mostly sunny. Seas around 1 ft.

Wednesday Night

SW wind 5 to 10 kt. Mostly cloudy. Seas around 1 ft.

Thursday

SW wind 10 to 15 kt becoming W 15 to 20 kt in the afternoon. Winds could gust as high as 30 kt. A chance of snow showers between noon and 4pm. Seas around 1 ft.

Thursday Night

WNW wind 17 to 20 kt decreasing to 15 to 18 kt after midnight. Winds could gust as high as 30 kt. Mostly clear. Seas around 1 ft.

Friday

WNW wind around 10 kt becoming WSW in the afternoon. Sunny. Seas around 1 ft.

Friday Night

WSW wind 5 to 10 kt. Mostly 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.