For More Weather Information:

Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

This Afternoon
High: 34 °F
S 15kt
2ft
Tonight
Low: 33 °F
SSE 10kt
2ft
Wednesday
High: 44 °F
W 10kt
2ft
Wednesday Night
Low: 34 °F
SW 10kt
2ft
Thursday
High: 41 °F
ENE 10kt
2ft
Thursday Night
Low: 35 °F
⇑ENE 20kt
2-3ft
Friday
High: 38 °F
NE 20kt
3ft
Friday Night
Low: 37 °F
ENE 10kt
2-3ft
Saturday
High: 49 °F
⇑S 15kt
2-3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:31 pm EST Mar 3, 2026
Forecast Valid: 3pm EST Mar 3, 2026-6pm EDT Mar 10, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

S wind around 15 kt. Snow. Seas around 2 ft.

Tonight

SSE wind around 10 kt becoming W after midnight. Rain and snow, possibly mixed with sleet, becoming all rain after 10pm, then gradually ending. Seas around 2 ft.

Wednesday

W wind 5 to 10 kt becoming SW in the afternoon. Sunny. Seas around 2 ft.

Wednesday Night

SW wind 5 to 10 kt becoming NNW after midnight. Mostly clear. Seas around 2 ft.

Thursday

NNE wind 5 to 10 kt becoming ENE in the afternoon. A chance of rain after 4pm. Seas around 2 ft.

Thursday Night

ENE wind 15 to 18 kt increasing to 17 to 20 kt after midnight. Winds could gust as high as 25 kt. Rain likely before 1am, then rain and snow. Seas 2 to 3 ft.

Friday

NE wind 15 to 20 kt, with gusts as high as 25 kt. Rain and snow likely, mainly before 11am. Seas around 3 ft.

Friday Night

ENE wind around 10 kt becoming SE after midnight. Cloudy. Seas 2 to 3 ft.

Saturday

S wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Mostly cloudy. Seas 2 to 3 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.