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4NM ESE Portland ME

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:51 am EDT Mar 17, 2026
Forecast Valid: 11am EDT Mar 17, 2026-6pm EDT Mar 23, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...

Today

WSW wind around 20 kt, with gusts as high as 30 kt. Sunny. Seas around 3 ft.

Tonight

W wind 15 to 20 kt, with gusts as high as 30 kt. Mostly clear. Seas 2 to 3 ft.

Wednesday

WNW wind 7 to 10 kt becoming WSW 5 to 8 kt in the afternoon. Sunny. Seas around 2 ft.

Wednesday Night

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

Thursday

S wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Partly sunny. Seas around 2 ft.

Thursday Night

S wind around 10 kt becoming SSW after midnight. Mostly cloudy. Seas around 2 ft.

Friday

SSW wind around 10 kt. Partly sunny. Seas around 2 ft.

Friday Night

SW wind around 10 kt becoming W after midnight. A chance of rain after 3am, mixing with snow after 5am. Seas around 2 ft.

Saturday

NNW wind 10 to 15 kt becoming WNW in the afternoon. A chance of rain and snow before 11am, then a chance of rain. 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.