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Copper Harbor MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 6:18 pm CDT May 16, 2026
Forecast Valid: 7pm CDT May 16, 2026-6pm CDT May 23, 2026

Tonight

NW wind 10 to 15 kt becoming NNE after midnight. Mostly clear. Waves 2 to 3 ft.

Sunday

E wind around 10 kt, with gusts as high as 20 kt. A slight chance of showers after 4pm. Waves 1 to 2 ft.

Sunday Night

E wind 15 to 20 kt, with gusts as high as 25 kt. A chance of showers, then showers and possibly a thunderstorm after 10pm. Waves 2 to 4 ft.

Monday

SSE wind 5 to 15 kt becoming N in the morning. Showers likely and possibly a thunderstorm. Waves 2 to 3 ft.

Monday Night

NNE wind 15 to 20 kt. A chance of showers and thunderstorms, then showers after 1am. Waves 4 ft building to 7 ft.

Tuesday

NE wind 20 to 25 kt becoming NNW in the afternoon. Winds could gust as high as 35 kt. Showers, mainly before 1pm. Waves 7 to 9 ft.

Tuesday Night

NNW wind 20 to 25 kt. Mostly cloudy. Waves 6 to 8 ft.

Wednesday

NNW wind 10 to 20 kt becoming WNW in the afternoon. Winds could gust as high as 25 kt. Partly sunny. Waves 5 ft subsiding to 2 ft.

Wednesday Night

Variable winds 5 kt or less. Partly 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.