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Gray/Portland, ME Local Forecast Office

3NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Tonight
Low: 25 °F
ENE 15kt
< 1ft
Saturday
High: 33 °F
NNE 15kt⇓
< 1ft
Saturday Night
Low: 25 °F
NNE 10kt
< 1ft
Sunday
High: 36 °F
ENE 10kt
< 1ft
Sunday Night
Low: 28 °F
⇑ENE 20kt
< 1ft
Monday
High: 33 °F
NNE 25kt
< 1ft
Monday Night
Low: 24 °F
N 20kt⇓
< 1ft
Tuesday
High: 34 °F
WNW 10kt
< 1ft
Tuesday Night
Low: 18 °F
WNW 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:04 pm EST Feb 20, 2026
Forecast Valid: 9pm EST Feb 20, 2026-6pm EST Feb 27, 2026

View Nearby Observations

Detailed Forecast

Tonight

E wind around 15 kt becoming NNE after midnight. Winds could gust as high as 25 kt. Snow, mainly before 4am. Seas 1 ft or less.

Saturday

NNE wind 10 to 15 kt decreasing to 5 to 10 kt in the afternoon. Winds could gust as high as 25 kt. A chance of snow, mainly before 7am. Seas 1 ft or less.

Saturday Night

NNE wind 5 to 10 kt. Partly cloudy. Seas 1 ft or less.

Sunday

NNE wind around 10 kt becoming ENE in the afternoon. Winds could gust as high as 20 kt. Mostly cloudy. Seas 1 ft or less.

Sunday Night

ENE wind 15 to 18 kt increasing to 17 to 20 kt after midnight. Winds could gust as high as 35 kt. Snow likely, mainly after 3am. Seas 1 ft or less.

Monday

NNE wind around 25 kt, with gusts as high as 40 kt. Snow likely. Seas 1 ft or less.

Monday Night

N wind 15 to 20 kt becoming NW 10 to 15 kt after midnight. Winds could gust as high as 30 kt. A chance of snow before 10pm. Seas 1 ft or less.

Tuesday

WNW wind around 10 kt. Mostly sunny. Seas 1 ft or less.

Tuesday Night

WNW wind 5 to 10 kt. Partly cloudy. 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.