For More Weather Information:

Copper Harbor MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 5:24 pm CDT Sep 20, 2026
Forecast Valid: 6pm CDT Sep 20, 2026-6pm CDT Sep 27, 2026

Tonight

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

Monday

E wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

Monday Night

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

Tuesday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Tuesday Night

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

Wednesday

Variable winds less than 5 kt becoming SE 5 to 10 kt in the morning. Sunny. Waves 1 ft or less.

Wednesday Night

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

Thursday

S wind 5 to 10 kt. Mostly sunny. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. 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.