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4NM ESE Portland ME

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:11 am EDT Aug 17, 2026
Forecast Valid: 8am EDT Aug 17, 2026-6pm EDT Aug 23, 2026

Today

S wind around 15 kt, with gusts as high as 20 kt. Showers, mainly before 2pm. Patchy fog after 2pm. Seas around 2 ft.

Tonight

SSE wind 5 to 10 kt becoming NNE after midnight. A chance of showers, mainly after 10pm. Patchy dense fog. Seas 1 to 2 ft.

Tuesday

Variable winds 5 kt or less. A slight chance of showers before 9am. Patchy dense fog before 8am. Seas around 1 ft.

Tuesday Night

Variable winds 5 kt or less. Increasing clouds. Seas 1 to 2 ft.

Wednesday

WSW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Partly sunny. Seas around 2 ft.

Wednesday Night

S wind 5 to 10 kt becoming W after midnight. Partly cloudy. Seas around 2 ft.

Thursday

Variable winds 5 kt or less. Mostly sunny. Seas around 2 ft.

Thursday Night

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

Friday

Variable winds 5 kt or less. Sunny. Seas around 1 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.