For More Weather Information:

Gray/Portland, ME Local Forecast Office

3NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Today
High: 32 °F
N 20kt
< 1ft
Tonight
Low: 25 °F
N 10kt
< 1ft
Christmas Day
High: 37 °F
⇑NW 20kt
< 1ft
Thursday Night
Low: 14 °F
NNW 20kt
< 1ft
Friday
High: 23 °F
NNW 15kt⇓
< 1ft
Friday Night
Low: 18 °F
N 10kt
< 1ft
Saturday
High: 26 °F
NNE 10kt
< 1ft
Saturday Night
Low: 20 °F
N 10kt
< 1ft
Sunday
High: 36 °F
SW 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:19 am EST Dec 24, 2025
Forecast Valid: 11am EST Dec 24, 2025-6pm EST Dec 30, 2025

View Nearby Observations

Detailed Forecast

Today

N wind 15 to 20 kt, with gusts as high as 30 kt. Snow likely, mainly before 2pm. Seas 1 ft or less.

Tonight

N wind 5 to 10 kt becoming WSW after midnight. A slight chance of snow after 5am. Seas 1 ft or less.

Christmas Day

SW wind 10 to 15 kt becoming NW 15 to 20 kt in the afternoon. Winds could gust as high as 30 kt. A chance of snow showers, mainly before noon. Seas 1 ft or less.

Thursday Night

NNW wind 15 to 20 kt, with gusts as high as 35 kt. Mostly clear. Seas 1 ft or less.

Friday

NNW wind 12 to 15 kt decreasing to 10 to 13 kt in the afternoon. Winds could gust as high as 25 kt. Mostly sunny. Seas 1 ft or less.

Friday Night

N wind around 10 kt. A chance of snow after 1am. Seas 1 ft or less.

Saturday

NNE wind around 10 kt, with gusts as high as 20 kt. A chance of snow before 1pm. Seas 1 ft or less.

Saturday Night

N wind 5 to 10 kt becoming NW after midnight. Mostly cloudy. Seas 1 ft or less.

Sunday

WNW wind 5 to 10 kt becoming SSW in the afternoon. A chance of rain and snow after 4pm. 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.