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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Tonight
Low: 16 °F
WNW 25kt⇓
3-4ft
Friday
High: 28 °F
W 15kt
2-3ft
Friday Night
Low: 22 °F
W 20kt
2ft
Saturday
High: 28 °F
W 15kt
2ft
Saturday Night
Low: 23 °F
WNW 10kt
1ft
Sunday
High: 27 °F
NW 10kt
1ft
Sunday Night
Low: 15 °F
NW 15kt
1ft
Monday
High: 26 °F
NW 15kt⇓
1ft
Monday 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: 4:03 pm EST Jan 1, 2026
Forecast Valid: 4pm EST Jan 1, 2026-6pm EST Jan 8, 2026

View Nearby Observations

Detailed Forecast

Tonight

WNW wind 22 to 25 kt decreasing to 20 to 23 kt after midnight. Winds could gust as high as 35 kt. A slight chance of flurries after midnight. Widespread freezing spray. Seas 3 to 4 ft.

Friday

W wind around 15 kt, with gusts as high as 25 kt. Widespread freezing spray before 2pm. Mostly sunny. Seas 2 to 3 ft.

Friday Night

W wind 15 to 20 kt. Widespread freezing spray after midnight. Mostly clear. Seas around 2 ft.

Saturday

W wind around 15 kt, with gusts as high as 25 kt. Widespread freezing spray before 11am. Mostly sunny. Seas around 2 ft.

Saturday Night

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

Sunday

NW wind around 10 kt. Partly sunny. Seas around 1 ft.

Sunday Night

NW wind 10 to 15 kt, with gusts as high as 25 kt. Partly cloudy. Seas around 1 ft.

Monday

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

Monday Night

WSW wind around 10 kt. A chance of snow. 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.