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23NM S Portland ME

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:13 am EST Nov 19, 2025
Forecast Valid: 8am EST Nov 19, 2025-6pm EST Nov 25, 2025

Today

NW wind 7 to 10 kt decreasing to 5 to 8 kt in the afternoon. Sunny. Seas around 1 ft.

Tonight

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

Thursday

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

Thursday Night

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

Friday

SW wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Winds could gust as high as 20 kt. Scattered showers after 4pm. Seas 1 to 2 ft.

Friday Night

SW wind around 15 kt becoming W after midnight. Winds could gust as high as 20 kt. Scattered showers before 11pm. Seas around 3 ft.

Saturday

WNW wind 10 to 15 kt becoming NNW in the afternoon. Mostly sunny. Seas around 2 ft.

Saturday Night

N wind around 10 kt. Partly cloudy. Seas around 2 ft.

Sunday

NNW wind 5 to 10 kt becoming SW in the afternoon. Mostly sunny. 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.