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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Today
High: 69 °F
Light Wind
1ft
Tonight
Low: 60 °F
Light Wind
1ft
Friday
High: 65 °F
Light Wind
1ft
Friday Night
Low: 58 °F
Light Wind
1ft
Saturday
High: 70 °F
Light Wind
1ft
Saturday Night
Low: 60 °F
Light Wind
1ft
Sunday
High: 70 °F
⇑SSE 15kt
1ft
Sunday Night
Low: 61 °F
SSW 15kt
2-3ft
Monday
High: 69 °F
WSW 10kt
1-2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:21 am EDT Jun 11, 2026
Forecast Valid: 11am EDT Jun 11, 2026-6pm EDT Jun 17, 2026

View Nearby Observations

Detailed Forecast

Today

Variable winds 5 kt or less. A slight chance of showers between 2pm and 3pm. Patchy fog before 2pm. Seas around 1 ft.

Tonight

Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and midnight. Patchy fog. Seas around 1 ft.

Friday

Variable winds 5 kt or less. Patchy fog before 9am. Seas around 1 ft.

Friday Night

Variable winds 5 kt or less. A chance of showers after 10pm. Seas around 1 ft.

Saturday

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

Saturday Night

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

Sunday

SSW wind 5 to 8 kt becoming SSE 10 to 15 kt. Mostly sunny. Seas around 1 ft.

Sunday Night

SSW wind around 15 kt, with gusts as high as 20 kt. Showers likely. Seas 2 to 3 ft.

Monday

WSW wind 5 to 10 kt. Showers likely. Seas 1 to 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.