For More Weather Information:

3NM N Copper Harbor MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 5:55 am CDT Sep 16, 2025
Forecast Valid: 9am CDT Sep 16, 2025-6pm CDT Sep 22, 2025

Today

SSE wind around 10 kt. Mostly sunny. Waves 1 ft or less.

Tonight

S wind around 10 kt becoming W after midnight. A slight chance of showers and thunderstorms after 1am. Waves 1 ft or less.

Wednesday

Variable winds 5 kt or less. A slight chance of showers before 10am. Patchy fog before 8am. Waves 1 ft or less.

Wednesday Night

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

Thursday

NE wind around 10 kt, with gusts as high as 15 kt. Partly sunny. Waves 1 to 2 ft.

Thursday Night

NNE wind 5 to 10 kt becoming E after midnight. Partly cloudy. Waves around 1 ft.

Friday

E wind 10 to 15 kt, with gusts as high as 20 kt. Mostly sunny. Waves around 2 ft.

Friday Night

E wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 to 2 ft.

Saturday

SE wind 10 to 15 kt, with gusts as high as 20 kt. Partly sunny. Waves around 1 ft.

*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.