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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]

Tonight
Low: 65 °F
Light Wind
1ft
Friday
High: 74 °F
Light Wind
1ft
Friday Night
Low: 61 °F
Light Wind
1ft
Saturday
High: 79 °F
Light Wind
1ft
Saturday Night
Low: 62 °F
Light Wind
1ft
Sunday
High: 78 °F
⇑SSE 10kt
1-2ft
Sunday Night
Low: 63 °F
SSW 15kt
3ft
Monday
High: 75 °F
Light Wind
1-2ft
Monday Night
Low: 59 °F
Light Wind
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:15 pm EDT Jun 11, 2026
Forecast Valid: 7pm EDT Jun 11, 2026-6pm EDT Jun 18, 2026

View Nearby Observations

Detailed Forecast

Tonight

Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 8pm. Patchy fog before 8pm, then Areas of fog after 2am. Seas around 1 ft.

Friday

Variable winds 5 kt or less. A slight chance of showers, mainly between noon and 1pm. Seas around 1 ft.

Friday Night

Variable winds 5 kt or less. A slight chance of showers and thunderstorms, then a chance of showers after midnight. Areas of fog. Seas around 1 ft.

Saturday

Variable winds 5 kt or less. Sunny. Seas around 1 ft.

Saturday Night

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

Sunday

Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.

Sunday Night

SSW wind 10 to 15 kt. Showers likely, mainly after 11pm. Seas around 3 ft.

Monday

Variable winds 5 kt or less. A chance of showers. Seas 1 to 2 ft.

Monday 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.