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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Overnight
Low: 23 °F
W 10kt
1-2ft
Wednesday
High: 31 °F
W 15kt
1-2ft
Wednesday Night
Low: 21 °F
NW 15kt
1-2ft
Thursday
High: 29 °F
NW 10kt
1ft
Thursday Night
Low: 18 °F
N 10kt
1ft
Friday
High: 29 °F
NNE 10kt
1ft
Friday Night
Low: 18 °F
⇑W 10kt
1-2ft
Saturday
High: 25 °F
⇑NW 35kt
4ft
Saturday Night
Low: 6 °F
NW 30kt⇓
4ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:41 pm EST Feb 3, 2026
Forecast Valid: 11pm EST Feb 3, 2026-6pm EST Feb 10, 2026

View Nearby Observations

Detailed Forecast

Overnight

W wind around 10 kt. Widespread freezing spray after 3am. Mostly clear. Seas 1 to 2 ft.

Wednesday

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

Wednesday Night

NW wind 10 to 15 kt. Widespread freezing spray after 4am. Mostly clear. Seas 1 to 2 ft.

Thursday

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

Thursday Night

NNW wind around 10 kt becoming NNE after midnight. Widespread freezing spray after 11pm. Partly cloudy. Seas around 1 ft.

Friday

NNE wind 5 to 10 kt becoming SE in the afternoon. Widespread freezing spray before 9am. Mostly cloudy. Seas around 1 ft.

Friday Night

S wind 5 to 8 kt becoming W 7 to 10 kt after midnight. Snow likely, mainly after 4am. Widespread freezing spray after 2am. Seas 1 to 2 ft.

Saturday

NW wind 15 to 20 kt increasing to 30 to 35 kt. Winds could gust as high as 40 kt. Snow likely. Widespread freezing spray. Seas 2 ft building to 4 ft.

Saturday Night

NW wind 27 to 30 kt decreasing to 25 to 28 kt after midnight. Winds could gust as high as 40 kt. A chance of snow showers. Widespread freezing spray. Seas around 4 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.