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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Tonight
Low: 59 °F
S 15kt
2ft
Thursday
High: 67 °F
⇑SSE 25kt
4ft
Thursday Night
Low: 61 °F
S 15kt
2-3ft
Juneteenth
High: 71 °F
WSW 15kt
2ft
Friday Night
Low: 60 °F
W 15kt
2ft
Saturday
High: 69 °F
WNW 15kt
2ft
Saturday Night
Low: 59 °F
W 10kt
1-2ft
Sunday
High: 68 °F
WNW 10kt
1ft
Sunday Night
Low: 58 °F
Light Wind
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:53 pm EDT Jun 17, 2026
Forecast Valid: 9pm EDT Jun 17, 2026-6pm EDT Jun 24, 2026

View Nearby Observations

Detailed Forecast

Tonight

S wind 10 to 15 kt. A chance of showers after 5am. Seas around 2 ft.

Thursday

SSE wind 15 to 20 kt increasing to 20 to 25 kt in the afternoon. Winds could gust as high as 30 kt. Showers and thunderstorms before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. Seas 2 ft building to 4 ft.

Thursday Night

S wind 10 to 15 kt becoming WSW after midnight. Showers, mainly before 8pm. Seas 2 to 3 ft.

Juneteenth

WSW wind around 15 kt. Sunny. Seas around 2 ft.

Friday Night

W wind around 15 kt. Mostly clear. Seas around 2 ft.

Saturday

WNW wind 10 to 15 kt. Sunny. Seas around 2 ft.

Saturday Night

W wind around 10 kt. Partly cloudy. Seas 1 to 2 ft.

Sunday

WNW wind 5 to 10 kt becoming SSW in the afternoon. A chance of showers. Seas around 1 ft.

Sunday Night

Variable winds 5 kt or less. Partly cloudy. 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.