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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]

Friday
High: 15 °F
WNW 15kt
1ft
Friday Night
Low: 4 °F
WNW 15kt⇓
1ft
Saturday
High: 21 °F
WNW 10kt
< 1ft
Saturday Night
Low: 11 °F
⇑N 15kt
< 1ft
Sunday
High: 27 °F
⇑N 20kt
2-3ft
Sunday Night
Low: 16 °F
NW 25kt⇓
5ft
Monday
High: 32 °F
WNW 10kt
5-6ft
Monday Night
Low: 17 °F
NW 10kt
5-6ft
Tuesday
High: 33 °F
Light Wind
5ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:51 am EST Jan 30, 2026
Forecast Valid: 2am EST Jan 30, 2026-6pm EST Feb 5, 2026

View Nearby Observations

Detailed Forecast

Friday

WNW wind around 15 kt, with gusts as high as 25 kt. Widespread freezing spray. Sunny. Seas around 1 ft.

Friday Night

WNW wind 12 to 15 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 20 kt. Widespread freezing spray. Mostly clear. Seas around 1 ft.

Saturday

WNW wind 5 to 10 kt. Widespread freezing spray before noon. Mostly sunny. Seas 1 ft or less.

Saturday Night

NW wind 5 to 8 kt becoming N 10 to 15 kt after midnight. Widespread freezing spray after 8pm. Mostly cloudy. Seas 1 ft or less.

Sunday

N wind 15 to 18 kt increasing to 17 to 20 kt in the afternoon. Winds could gust as high as 30 kt. A chance of snow after 4pm. Widespread freezing spray before 3pm. Seas 2 to 3 ft.

Sunday Night

NW wind 20 to 25 kt decreasing to 15 to 20 kt after midnight. Winds could gust as high as 30 kt. Widespread freezing spray after 8pm. Mostly cloudy. Seas 3 ft building to 5 ft.

Monday

WNW wind around 10 kt. Widespread freezing spray before 10am. Mostly sunny. Seas 5 to 6 ft.

Monday Night

NW wind 5 to 10 kt. Widespread freezing spray after 4am. Mostly clear. Seas 5 to 6 ft.

Tuesday

Variable winds 5 kt or less. Mostly sunny. Seas 5 ft subsiding 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.