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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]

Tonight
Low: 27 °F
W 10kt⇓
2ft
Saturday
High: 40 °F
SSW 10kt
2-3ft
Saturday Night
Low: 33 °F
WSW 10kt
2-3ft
Sunday
High: 38 °F
Light Wind
2ft
Sunday Night
Low: 27 °F
WNW 10kt
2ft
M.L.King Day
High: 33 °F
⇑SW 15kt
2ft
Monday Night
Low: 17 °F
W 15kt
2-3ft
Tuesday
High: 22 °F
W 15kt
2ft
Tuesday Night
Low: 14 °F
WSW 15kt
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:52 pm EST Jan 16, 2026
Forecast Valid: 6pm EST Jan 16, 2026-6pm EST Jan 23, 2026

View Nearby Observations

Detailed Forecast

Tonight

W wind 7 to 10 kt becoming WSW 5 to 8 kt after midnight. A slight chance of snow after 5am. Seas around 2 ft.

Saturday

S wind around 10 kt becoming SW in the afternoon. A chance of rain and snow before noon, then rain likely. Seas 2 to 3 ft.

Saturday Night

WSW wind 5 to 10 kt. A chance of rain, mainly before 7pm. Seas 2 to 3 ft.

Sunday

Variable winds 5 kt or less. A chance of snow before 1pm, then a chance of rain between 1pm and 2pm, then a chance of snow after 2pm. Seas around 2 ft.

Sunday Night

WNW wind 5 to 10 kt. A chance of snow before 1am. Seas around 2 ft.

M.L.King Day

W wind 10 to 13 kt becoming SW 12 to 15 kt in the afternoon. Mostly sunny. Seas around 2 ft.

Monday Night

W wind around 15 kt, with gusts as high as 25 kt. Partly cloudy. Seas 2 to 3 ft.

Tuesday

W wind around 15 kt, with gusts as high as 20 kt. Sunny. Seas around 2 ft.

Tuesday Night

WSW wind 10 to 15 kt. Mostly clear. 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.