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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]

Tonight
Low: 63 °F
Light Wind
2ft
Tuesday
High: 72 °F
⇑SE 10kt
2ft
Tuesday Night
Low: 63 °F
SSE 10kt
3ft
Wednesday
High: 68 °F
E 15kt
3ft
Wednesday Night
Low: 62 °F
E 10kt
3-4ft
Thursday
High: 67 °F
NE 10kt
3ft
Thursday Night
Low: 62 °F
Light Wind
3ft
Friday
High: 71 °F
Light Wind
2-3ft
Friday Night
Low: 64 °F
Light Wind
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:50 pm EDT Jul 27, 2026
Forecast Valid: 4pm EDT Jul 27, 2026-6pm EDT Aug 3, 2026

View Nearby Observations

Detailed Forecast

Tonight

Variable winds 5 kt or less. Patchy fog after 2am. Seas around 2 ft.

Tuesday

Variable winds less than 5 kt becoming SE 5 to 10 kt in the morning. A slight chance of showers and thunderstorms after 4pm. Patchy fog before 2pm. Seas around 2 ft.

Tuesday Night

SSE wind around 10 kt. A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers after 5am. Patchy fog after 1am. Seas around 3 ft.

Wednesday

E wind 10 to 15 kt. Rain, with thunderstorms also possible after 5pm. Patchy fog before 10am. Seas around 3 ft.

Wednesday Night

E wind around 10 kt. Rain and possibly a thunderstorm. Seas 3 to 4 ft.

Thursday

NE wind around 10 kt. Rain. Seas around 3 ft.

Thursday Night

Variable winds 5 kt or less. A chance of showers. Seas around 3 ft.

Friday

Variable winds 5 kt or less. A chance of showers. Seas 2 to 3 ft.

Friday Night

Variable winds 5 kt or less. Partly cloudy. 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.