For More Weather Information:

9NM SE Copper Harbor MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 7:07 am CDT Aug 18, 2026
Forecast Valid: 8am CDT Aug 18, 2026-6pm CDT Aug 24, 2026

Today

W wind around 10 kt, with gusts as high as 20 kt. Sunny. Waves 1 ft or less.

Tonight

WSW wind around 10 kt becoming NW after midnight. Winds could gust as high as 15 kt. Mostly clear. Waves 1 ft or less.

Wednesday

WNW wind 5 to 10 kt. Sunny. Waves 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

Thursday

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

Thursday Night

SSE wind around 10 kt. A chance of showers. Waves 1 ft or less.

Friday

SSE wind around 10 kt becoming ENE in the afternoon. A chance of showers after 1pm. Waves around 1 ft.

Friday Night

NE wind 5 to 10 kt becoming NW after midnight. Mostly cloudy. Waves around 1 ft.

Saturday

NW wind around 10 kt, with gusts as high as 20 kt. Mostly sunny. 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.