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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Tuesday
High: 36 °F
S 15kt
2ft
Tuesday Night
Low: 32 °F
SSE 15kt
2ft
Wednesday
High: 45 °F
W 10kt
2ft
Wednesday Night
Low: 35 °F
SSW 10kt
2ft
Thursday
High: 41 °F
ENE 10kt
2ft
Thursday Night
Low: 35 °F
⇑ENE 20kt
2-3ft
Friday
High: 38 °F
ENE 20kt
3ft
Friday Night
Low: 37 °F
ENE 15kt
3ft
Saturday
High: 48 °F
⇑SSW 15kt
2-3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:40 am EST Mar 3, 2026
Forecast Valid: 4am EST Mar 3, 2026-6pm EDT Mar 9, 2026

View Nearby Observations

Detailed Forecast

Tuesday

S wind 10 to 15 kt. Snow, mainly after 3pm. Widespread freezing spray before 8am. Seas around 2 ft.

Tuesday Night

SSE wind 10 to 15 kt becoming N after midnight. Rain and snow before 2am, then a chance of rain between 2am and 4am. Seas around 2 ft.

Wednesday

W wind 5 to 10 kt becoming SSW in the afternoon. Sunny. Seas around 2 ft.

Wednesday Night

SSW wind 5 to 10 kt becoming W after midnight. Mostly clear. Seas around 2 ft.

Thursday

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

Thursday Night

ENE wind 15 to 18 kt increasing to 17 to 20 kt after midnight. Winds could gust as high as 30 kt. A chance of rain before 1am, then rain and snow likely between 1am and 4am, then snow likely after 4am. Seas 2 to 3 ft.

Friday

ENE wind 15 to 20 kt, with gusts as high as 30 kt. Snow likely before 10am, then rain and snow likely between 10am and 4pm, then a chance of rain after 4pm. Seas around 3 ft.

Friday Night

ENE wind 10 to 15 kt becoming ESE after midnight. A chance of rain. Seas around 3 ft.

Saturday

SSW wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Mostly cloudy. 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.