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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Today
High: 33 °F
NNW 15kt⇓
1ft
Tonight
Low: 30 °F
Light Wind
1ft
Washington's Birthday
High: 37 °F
Light Wind
1ft
Monday Night
Low: 33 °F
NNW 10kt
1ft
Tuesday
High: 40 °F
SSW 10kt
1-2ft
Tuesday Night
Low: 34 °F
SW 10kt
2ft
Wednesday
High: 41 °F
W 10kt
1-2ft
Wednesday Night
Low: 34 °F
⇑NE 20kt
1-2ft
Thursday
High: 39 °F
NNE 20kt⇓
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:32 am EST Feb 15, 2026
Forecast Valid: 5am EST Feb 15, 2026-6pm EST Feb 21, 2026

View Nearby Observations

Detailed Forecast

Today

NNW wind 10 to 15 kt decreasing to 5 to 10 kt. Winds could gust as high as 25 kt. Sunny. Seas around 1 ft.

Tonight

Variable winds 5 kt or less. Increasing clouds. Seas around 1 ft.

Washington's Birthday

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

Monday Night

E wind 5 to 10 kt becoming W after midnight. Mostly cloudy. Seas around 1 ft.

Tuesday

SSW wind around 10 kt. Partly sunny. Seas 1 to 2 ft.

Tuesday Night

SW wind around 10 kt becoming WNW after midnight. Partly cloudy. Seas around 2 ft.

Wednesday

W wind 5 to 10 kt becoming N in the afternoon. A chance of rain and snow after 3pm. Seas 1 to 2 ft.

Wednesday Night

E wind 10 to 15 kt becoming NE 15 to 20 kt after midnight. Winds could gust as high as 25 kt. Rain and snow likely, becoming all snow after 4am. Seas 1 to 2 ft.

Thursday

NNE wind 15 to 20 kt becoming ENE 10 to 15 kt in the afternoon. Winds could gust as high as 25 kt. A chance of snow. Seas around 2 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.