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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Tonight
Low: 39 °F
SSW 15kt⇓
2-3ft
Friday
High: 42 °F
NNW 15kt
2-3ft
Friday Night
Low: 26 °F
N 15kt
2ft
Saturday
High: 32 °F
N 15kt⇓
1-2ft
Saturday Night
Low: 28 °F
NW 10kt
1-2ft
Sunday
High: 43 °F
SSW 15kt
2ft
Sunday Night
Low: 39 °F
SSW 15kt
2-3ft
Monday
High: 50 °F
SW 15kt
3ft
Monday Night
Low: 40 °F
WSW 15kt
2-3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:16 pm EDT Mar 26, 2026
Forecast Valid: 8pm EDT Mar 26, 2026-6pm EDT Apr 2, 2026

View Nearby Observations

Detailed Forecast

Tonight

SSW wind 10 to 15 kt becoming WNW 5 to 8 kt after midnight. Winds could gust as high as 20 kt. Rain, mainly before 3am. Patchy fog after 9pm. Seas 2 to 3 ft.

Friday

NNW wind 10 to 15 kt. Mostly cloudy, then gradually becoming sunny. Seas 2 to 3 ft.

Friday Night

N wind 10 to 15 kt, with gusts as high as 20 kt. Partly cloudy. Seas around 2 ft.

Saturday

N wind 10 to 15 kt decreasing to 5 to 10 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.

Saturday Night

NW wind around 10 kt. Partly cloudy. Seas 1 to 2 ft.

Sunday

WSW wind around 15 kt becoming SSW in the afternoon. Winds could gust as high as 20 kt. Mostly sunny. Seas around 2 ft.

Sunday Night

SSW wind around 15 kt, with gusts as high as 25 kt. Mostly cloudy. Seas 2 to 3 ft.

Monday

SW wind 10 to 15 kt. Mostly cloudy. Seas around 3 ft.

Monday Night

WSW wind around 15 kt becoming WNW after midnight. Winds could gust as high as 20 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.