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9NM SE Copper Harbor MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 12:17 am CDT Sep 13, 2026
Forecast Valid: 12am CDT Sep 13, 2026-6pm CDT Sep 19, 2026

Overnight

WNW wind around 15 kt, with gusts as high as 25 kt. Mostly cloudy. Waves around 1 ft.

Sunday

WNW wind 10 to 20 kt, with gusts as high as 30 kt. A slight chance of showers between 10am and 11am. Waves 1 to 2 ft.

Sunday Night

NW wind 5 to 15 kt, with gusts as high as 20 kt. Mostly clear. Waves 1 ft or less.

Monday

W wind 5 to 10 kt becoming SE 10 to 15 kt in the afternoon. Winds could gust as high as 30 kt. Increasing clouds. Waves 1 to 2 ft.

Monday Night

SSE wind 20 to 25 kt becoming SSW after midnight. Winds could gust as high as 40 kt. Showers. Waves 5 ft building to 8 ft.

Tuesday

SW wind 20 to 30 kt becoming W in the afternoon. Winds could gust as high as 45 kt. Mostly cloudy, then gradually becoming sunny. Waves 4 to 5 ft.

Tuesday Night

W wind 10 to 15 kt, with gusts as high as 30 kt. Partly cloudy. Waves 1 to 2 ft.

Wednesday

Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.

Wednesday Night

E wind 5 to 10 kt becoming S after midnight. Mostly cloudy. Waves 1 ft or less.

*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.