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4NM ESE Portland ME

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:26 am EDT Apr 18, 2026
Forecast Valid: 8am EDT Apr 18, 2026-6pm EDT Apr 24, 2026

Today

E wind 5 to 10 kt. Areas of dense fog before 1pm. Seas around 1 ft.

Tonight

Variable winds 5 kt or less. Patchy fog after 1am. Seas around 1 ft.

Sunday

S wind 5 to 10 kt becoming WNW in the afternoon. Rain, mainly after 8am. Patchy fog before 9am. Seas around 2 ft.

Sunday Night

W wind around 10 kt. Rain likely before 1am. Seas around 2 ft.

Monday

W wind around 10 kt. Mostly sunny. Seas 1 to 2 ft.

Monday Night

N wind around 10 kt. Partly cloudy. Seas around 1 ft.

Tuesday

N wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas around 1 ft.

Tuesday Night

SSW wind 10 to 15 kt. Mostly cloudy. Seas 1 to 2 ft.

Wednesday

SW wind around 10 kt. Partly 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.