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4NM ESE Portland ME

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:16 am EDT Jul 20, 2026
Forecast Valid: 6am EDT Jul 20, 2026-6pm EDT Jul 26, 2026

Today

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

Tonight

SSW wind 10 to 15 kt. Increasing clouds. Seas around 1 ft.

Tuesday

SSE wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Winds could gust as high as 20 kt. Partly sunny. Seas 1 to 2 ft.

Tuesday Night

SE wind around 15 kt, with gusts as high as 20 kt. Showers and possibly a thunderstorm. Seas around 2 ft.

Wednesday

S wind 10 to 15 kt. Showers likely, mainly after 4pm. Seas around 2 ft.

Wednesday Night

WSW wind 10 to 15 kt. A chance of showers before 8pm. Seas around 2 ft.

Thursday

W wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas around 2 ft.

Thursday Night

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

Friday

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

Winds and seas higher in and near tstms.

*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.