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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Sunday
High: 30 °F
⇑E 15kt
1-2ft
Sunday Night
Low: 24 °F
⇑ENE 30kt
4ft
Monday
High: 29 °F
NE 25kt⇓
4-5ft
Monday Night
Low: 15 °F
⇑WNW 25kt
4-5ft
Tuesday
High: 24 °F
W 20kt⇓
3-4ft
Tuesday Night
Low: 14 °F
WNW 15kt
3ft
Wednesday
High: 24 °F
WNW 15kt
2-3ft
Wednesday Night
Low: 14 °F
WNW 15kt
2ft
Thursday
High: 23 °F
NW 15kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:17 am EST Jan 25, 2026
Forecast Valid: 4am EST Jan 25, 2026-6pm EST Jan 31, 2026

View Nearby Observations

Detailed Forecast

Sunday

N wind 5 to 8 kt becoming E 10 to 15 kt in the afternoon. Snow, mainly after 1pm. The snow could be heavy at times. Widespread freezing spray before 1pm. Seas 1 to 2 ft.

Sunday Night

ENE wind 20 to 25 kt increasing to 25 to 30 kt after midnight. Snow. The snow could be heavy at times. Seas 2 ft building to 4 ft.

Monday

NE wind 22 to 25 kt becoming N 20 to 23 kt in the afternoon. Winds could gust as high as 35 kt. Snow. Widespread freezing spray after 9am. Seas 4 to 5 ft.

Monday Night

NNW wind 15 to 20 kt becoming WNW 20 to 25 kt after midnight. Winds could gust as high as 35 kt. Snow likely before 2am. Widespread freezing spray. Seas 4 to 5 ft.

Tuesday

W wind 17 to 20 kt decreasing to 15 to 18 kt in the afternoon. Winds could gust as high as 30 kt. Widespread freezing spray. Mostly sunny. Seas 3 to 4 ft.

Tuesday Night

W wind around 15 kt becoming WNW after midnight. Winds could gust as high as 25 kt. Widespread freezing spray. Mostly cloudy. Seas around 3 ft.

Wednesday

WNW wind around 15 kt, with gusts as high as 25 kt. Widespread freezing spray. Sunny. Seas 2 to 3 ft.

Wednesday Night

WNW wind 10 to 15 kt. Widespread freezing spray. Mostly cloudy. Seas around 2 ft.

Thursday

NW wind 10 to 15 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.