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Gray/Portland, ME Local Forecast Office

3NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

Sunday
High: 53 °F
WNW 15kt⇓
< 1ft
Sunday Night
Low: 45 °F
WSW 10kt
< 1ft
Monday
High: 56 °F
WNW 10kt
< 1ft
Monday Night
Low: 43 °F
WNW 10kt
< 1ft
Tuesday
High: 55 °F
W 10kt
< 1ft
Tuesday Night
Low: 44 °F
WSW 10kt
< 1ft
Veterans Day
High: 55 °F
WNW 10kt
< 1ft
Wednesday Night
Low: 37 °F
Light Wind
< 1ft
Thursday
High: 50 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:19 am EST Nov 8, 2026
Forecast Valid: 4am EST Nov 8, 2026-6pm EST Nov 14, 2026

View Nearby Observations

Detailed Forecast

Sunday

WNW wind 12 to 15 kt decreasing to 10 to 13 kt in the afternoon. Winds could gust as high as 30 kt. A chance of rain, mainly before 9am. Seas 1 ft or less.

Sunday Night

WSW wind 5 to 10 kt. Mostly clear during the early evening, then becoming mostly cloudy. Seas 1 ft or less.

Monday

WSW wind around 10 kt becoming WNW in the afternoon. Mostly sunny. Seas 1 ft or less.

Monday Night

WNW wind around 10 kt, with gusts as high as 20 kt. Mostly clear. Seas 1 ft or less.

Tuesday

W wind 5 to 10 kt. Mostly sunny. Seas 1 ft or less.

Tuesday Night

WSW wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

Veterans Day

WNW wind 5 to 10 kt. Sunny. Seas 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Thursday

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

*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.