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Gray/Portland, ME Local Forecast Office

18NM NNE Portsmouth NH

Marine Point Forecast

[NOTICE]

Today
High: 29 °F
Light Wind
< 1ft
Tonight
Low: 7 °F
Light Wind
< 1ft
Friday
High: 25 °F
Light Wind
< 1ft
Friday Night
Low: 15 °F
Light Wind
< 1ft
Saturday
High: 27 °F
⇑N 10kt
< 1ft
Saturday Night
Low: 2 °F
NW 10kt
< 1ft
Sunday
High: 18 °F
NW 10kt
< 1ft
Sunday Night
Low: -1 °F
Light Wind
< 1ft
Monday
High: 23 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:29 am EST Feb 5, 2026
Forecast Valid: 9am EST Feb 5, 2026-6pm EST Feb 11, 2026

View Nearby Observations

Detailed Forecast

Today

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Tonight

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Friday

Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

Friday Night

Variable winds 5 kt or less. A chance of snow after 3am. Seas 1 ft or less.

Saturday

N wind 5 to 8 kt increasing to 7 to 10 kt in the afternoon. Winds could gust as high as 25 kt. Snow likely, mainly between 9am and 1pm. Seas 1 ft or less.

Saturday Night

NW wind around 10 kt, with gusts as high as 25 kt. A chance of snow showers before 8pm. Seas 1 ft or less.

Sunday

NW wind 5 to 10 kt, with gusts as high as 20 kt. Partly sunny. Seas 1 ft or less.

Sunday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Monday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

*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.