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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Monday
High: 28 °F
NW 15kt
2ft
Monday Night
Low: 14 °F
NW 15kt⇓
2ft
Tuesday
High: 33 °F
S 10kt
1-2ft
Tuesday Night
Low: 30 °F
S 10kt
1-2ft
Wednesday
High: 36 °F
NW 10kt
2ft
Wednesday Night
Low: 26 °F
NNW 15kt
2ft
Thursday
High: 35 °F
NNW 15kt
2ft
Thursday Night
Low: 23 °F
NW 15kt
2ft
Friday
High: 34 °F
NW 15kt⇓
1-2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:23 am EST Feb 9, 2026
Forecast Valid: 3am EST Feb 9, 2026-6pm EST Feb 15, 2026

View Nearby Observations

Detailed Forecast

Monday

NW wind around 15 kt, with gusts as high as 25 kt. Widespread freezing spray before 1pm. Sunny. Seas around 2 ft.

Monday Night

NW wind 12 to 15 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 25 kt. Widespread freezing spray. Mostly clear. Seas around 2 ft.

Tuesday

WNW wind 5 to 10 kt becoming S in the afternoon. A chance of snow, mainly after 3pm. Widespread freezing spray before 8am. Seas 1 to 2 ft.

Tuesday Night

S wind around 10 kt becoming W after midnight. Snow, mainly before 2am. The snow could be heavy at times. Seas 1 to 2 ft.

Wednesday

NW wind around 10 kt. A chance of snow after 1pm. Seas around 2 ft.

Wednesday Night

NNW wind around 15 kt. Mostly cloudy. Seas around 2 ft.

Thursday

NNW wind 10 to 15 kt. Partly sunny. Seas around 2 ft.

Thursday Night

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

Friday

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