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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Tuesday
High: 31 °F
Light Wind
2ft
Tuesday Night
Low: 23 °F
W 10kt
1-2ft
Wednesday
High: 31 °F
WNW 15kt
1-2ft
Wednesday Night
Low: 20 °F
WNW 15kt
1-2ft
Thursday
High: 29 °F
NW 10kt
1ft
Thursday Night
Low: 17 °F
NNW 10kt
1ft
Friday
High: 29 °F
SSW 10kt
1ft
Friday Night
Low: 12 °F
W 15kt
1-2ft
Saturday
High: 19 °F
⇑NW 35kt
2-3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:56 pm EST Feb 2, 2026
Forecast Valid: 1am EST Feb 3, 2026-6pm EST Feb 9, 2026

View Nearby Observations

Detailed Forecast

Tuesday

Variable winds 5 kt or less. Widespread freezing spray before 8am. Sunny. Seas around 2 ft.

Tuesday Night

W wind 5 to 10 kt. Partly cloudy. Seas 1 to 2 ft.

Wednesday

WNW wind 10 to 15 kt. Widespread freezing spray before 9am. Mostly sunny. Seas 1 to 2 ft.

Wednesday Night

WNW wind 10 to 15 kt. Widespread freezing spray after 2am. Mostly clear. Seas 1 to 2 ft.

Thursday

NW wind 5 to 10 kt. Widespread freezing spray before 9am. Mostly sunny. Seas around 1 ft.

Thursday Night

NNW wind around 10 kt. Widespread freezing spray after 9pm. Partly cloudy. Seas around 1 ft.

Friday

NNW wind 5 to 10 kt becoming SSW in the afternoon. Widespread freezing spray before 10am. Partly sunny. Seas around 1 ft.

Friday Night

SW wind 10 to 15 kt becoming W after midnight. Winds could gust as high as 20 kt. A chance of snow. Widespread freezing spray after 2am. Seas 1 to 2 ft.

Saturday

NW wind 20 to 25 kt increasing to 30 to 35 kt. Winds could gust as high as 45 kt. A chance of snow. Widespread freezing spray. 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.