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4NM ESE Portland ME

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 1:08 am EDT Mar 19, 2026
Forecast Valid: 1am EDT Mar 19, 2026-6pm EDT Mar 25, 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

Thursday

S wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. A slight chance of snow showers before 8am. Seas 1 to 2 ft.

Thursday Night

S wind around 10 kt becoming SW after midnight. Partly cloudy. Seas around 2 ft.

Friday

W wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. A slight chance of rain after 5pm. Seas around 2 ft.

Friday Night

S wind around 15 kt becoming SSW after midnight. Winds could gust as high as 25 kt. Rain likely, mainly after 10pm. Seas around 2 ft.

Saturday

WNW wind around 10 kt becoming NNW in the morning. A chance of rain before 10am. Seas around 2 ft.

Saturday Night

W wind around 10 kt. Mostly cloudy. Seas around 2 ft.

Sunday

SSW wind 10 to 15 kt. A chance of rain after 8am. Seas around 2 ft.

Sunday Night

NNE wind 10 to 15 kt. A chance of rain before 9pm, then a chance of rain and snow. Seas around 2 ft.

Monday

NNE wind around 15 kt, with gusts as high as 25 kt. A chance of snow. 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.