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Gray/Portland, ME Local Forecast Office

4NM E Portsmouth NH

Marine Point Forecast

[NOTICE]

This Afternoon
High: 41 °F
W 15kt
1ft
Tonight
Low: 24 °F
W 15kt
1ft
Friday
High: 30 °F
⇑WSW 20kt
1ft
Friday Night
Low: 5 °F
WNW 20kt
1ft
Saturday
High: 14 °F
WNW 15kt
1ft
Saturday Night
Low: 6 °F
WNW 10kt
1ft
Sunday
High: 23 °F
NE 10kt
1ft
Sunday Night
Low: 18 °F
⇑ENE 20kt
1ft
Monday
High: 23 °F
N 20kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:04 pm EST Jan 22, 2026
Forecast Valid: 2pm EST Jan 22, 2026-6pm EST Jan 28, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

W wind around 15 kt. Mostly sunny. Seas around 1 ft.

Tonight

W wind around 15 kt, with gusts as high as 25 kt. Partly cloudy. Seas around 1 ft.

Friday

WSW wind 10 to 15 kt increasing to 15 to 20 kt in the afternoon. Winds could gust as high as 30 kt. Increasing clouds. Seas around 1 ft.

Friday Night

WNW wind around 20 kt, with gusts as high as 30 kt. Widespread freezing spray. Partly cloudy. Seas around 1 ft.

Saturday

WNW wind around 15 kt, with gusts as high as 20 kt. Widespread freezing spray. Sunny. Seas around 1 ft.

Saturday Night

WNW wind 5 to 10 kt. Widespread freezing spray. Mostly cloudy. Seas around 1 ft.

Sunday

NNW wind 5 to 10 kt becoming NE in the afternoon. Snow likely, mainly after 4pm. The snow could be heavy at times. Widespread freezing spray. Seas around 1 ft.

Sunday Night

ENE wind 15 to 18 kt increasing to 17 to 20 kt after midnight. Winds could gust as high as 25 kt. Snow. The snow could be heavy at times. Widespread freezing spray. Seas around 1 ft.

Monday

N wind 15 to 20 kt. Snow. Widespread freezing spray. Seas around 1 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.