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Gray/Portland, ME Local Forecast Office

8NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]

This Afternoon
High: 75 °F
W 20kt
3ft
Tonight
Low: 62 °F
W 10kt
2ft
Saturday
High: 71 °F
S 10kt
1ft
Saturday Night
Low: 65 °F
SSW 10kt
1ft
Sunday
High: 74 °F
SSW 10kt
2ft
Sunday Night
Low: 64 °F
N 10kt
1-2ft
Monday
High: 74 °F
SSE 10kt
1ft
Monday Night
Low: 69 °F
S 10kt
2ft
Tuesday
High: 81 °F
W 10kt
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:49 am EDT Jun 20, 2025
Forecast Valid: 3pm EDT Jun 20, 2025-6pm EDT Jun 27, 2025

View Nearby Observations

Detailed Forecast

This Afternoon

W wind around 20 kt. Mostly sunny. Seas around 3 ft.

Tonight

W wind 5 to 10 kt. Mostly clear. Seas around 2 ft.

Saturday

W wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas around 1 ft.

Saturday Night

SSW wind around 10 kt. A chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Seas around 1 ft.

Sunday

SSW wind around 10 kt becoming WSW in the afternoon. A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm. Seas around 2 ft.

Sunday Night

N wind 5 to 10 kt. Partly cloudy. Seas 1 to 2 ft.

Monday

SSE wind 5 to 10 kt. Mostly sunny. Seas around 1 ft.

Monday Night

S wind around 10 kt becoming WSW after midnight. Partly cloudy. Seas around 2 ft.

Tuesday

W wind 5 to 10 kt becoming SW in the afternoon. Sunny. 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.