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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Today
High: 32 °F
WNW 20kt
3-4ft
Tonight
Low: 21 °F
WNW 15kt⇓
2-3ft
Wednesday
High: 38 °F
⇑SSW 15kt
2-3ft
Wednesday Night
Low: 32 °F
WSW 15kt
2-3ft
Thursday
High: 38 °F
W 15kt
2ft
Thursday Night
Low: 28 °F
NNW 10kt
2ft
Friday
High: 37 °F
NNW 10kt
2ft
Friday Night
Low: 32 °F
SSW 15kt
2ft
Saturday
High: 43 °F
SSW 15kt
2-3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:19 am EST Feb 24, 2026
Forecast Valid: 8am EST Feb 24, 2026-6pm EST Mar 2, 2026

View Nearby Observations

Detailed Forecast

Today

WNW wind 15 to 20 kt, with gusts as high as 25 kt. Widespread freezing spray before 10am. Mostly sunny. Seas 3 to 4 ft.

Tonight

WNW wind 12 to 15 kt becoming WSW 10 to 13 kt after midnight. Winds could gust as high as 20 kt. A slight chance of snow after 5am. Widespread freezing spray after 1am. Seas 2 to 3 ft.

Wednesday

SSW wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Snow before noon, then rain and snow likely between noon and 3pm, then a chance of rain after 3pm. Seas 2 to 3 ft.

Wednesday Night

WSW wind 10 to 15 kt, with gusts as high as 20 kt. Partly cloudy. Seas 2 to 3 ft.

Thursday

W wind 10 to 15 kt, with gusts as high as 20 kt. Mostly sunny. Seas around 2 ft.

Thursday Night

WSW wind around 10 kt becoming N after midnight. A chance of snow after 7pm. Seas around 2 ft.

Friday

NNW wind 5 to 10 kt becoming W in the afternoon. Mostly sunny. Seas around 2 ft.

Friday Night

SSW wind 10 to 15 kt. Partly cloudy. Seas around 2 ft.

Saturday

SSW wind around 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas 2 to 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.