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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

This Afternoon
High: 41 °F
WSW 20kt
3ft
Tonight
Low: 26 °F
W 20kt
3ft
Friday
High: 31 °F
⇑WSW 25kt
3ft
Friday Night
Low: 8 °F
WNW 25kt
3ft
Saturday
High: 15 °F
WNW 20kt
2-3ft
Saturday Night
Low: 9 °F
WNW 15kt⇓
2ft
Sunday
High: 25 °F
⇑ENE 15kt
1-2ft
Sunday Night
Low: 21 °F
⇑ENE 25kt
2-3ft
Monday
High: 25 °F
NE 25kt
3ft

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: 12pm EST Jan 22, 2026-6pm EST Jan 28, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

WSW wind 15 to 20 kt. Mostly sunny. Seas around 3 ft.

Tonight

W wind around 20 kt, with gusts as high as 30 kt. Increasing clouds. Seas around 3 ft.

Friday

WSW wind 15 to 20 kt increasing to 20 to 25 kt in the afternoon. Winds could gust as high as 35 kt. Increasing clouds. Seas around 3 ft.

Friday Night

WNW wind around 25 kt, with gusts as high as 35 kt. Widespread freezing spray. Partly cloudy. Seas around 3 ft.

Saturday

WNW wind 15 to 20 kt, with gusts as high as 30 kt. Widespread freezing spray. Sunny. Seas 2 to 3 ft.

Saturday Night

WNW wind 12 to 15 kt decreasing to 10 to 13 kt after midnight. Widespread freezing spray. Mostly cloudy. Seas around 2 ft.

Sunday

N wind 10 to 13 kt becoming ENE 12 to 15 kt in the afternoon. Snow likely, mainly after 4pm. The snow could be heavy at times. Widespread freezing spray. Seas 1 to 2 ft.

Sunday Night

ENE wind 20 to 23 kt increasing to 22 to 25 kt after midnight. Snow. The snow could be heavy at times. Widespread freezing spray. Seas 2 to 3 ft.

Monday

NE wind around 25 kt becoming N in the afternoon. Snow. Widespread freezing spray. Seas around 3 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.