Hazardous Weather Conditions

For More Weather Information:

Marquette, MI Local Forecast Office

Copper Harbor MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 52 °F
NW 10kt
1-3ft
Tonight
Low: 46 °F
⇑S 15kt
< 1ft
Tuesday
High: 62 °F
S 15kt
< 1ft

Small Craft Advisory
Tuesday Night
Low: 53 °F
W 15kt
2-3ft

Small Craft Advisory
Wednesday
High: 58 °F
W 15kt
3ft
Wednesday Night
Low: 48 °F
WNW 20kt
3-4ft
Thursday
High: 54 °F
WNW 20kt
4-5ft
Thursday Night
Low: 47 °F
WNW 10kt
2-3ft
Friday
High: 54 °F
WNW 15kt
2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 10:18 am CDT Oct 5, 2026
Forecast Valid: 12pm CDT Oct 5, 2026-6pm CDT Oct 11, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

NW wind 5 to 10 kt. Mostly sunny. Waves 1 to 3 ft.

Tonight

Variable winds less than 5 kt becoming S 10 to 15 kt in the evening. A slight chance of showers after 4am. Waves 1 ft or less.

Tuesday

S wind 10 to 15 kt becoming WSW in the afternoon. Winds could gust as high as 25 kt. A slight chance of showers between 7am and 8am. Waves 1 ft or less.

Tuesday Night

W wind around 15 kt, with gusts as high as 25 kt. Partly cloudy. Waves 2 to 3 ft.

Wednesday

W wind around 15 kt, with gusts as high as 30 kt. Sunny. Waves around 3 ft.

Wednesday Night

WNW wind 15 to 20 kt, with gusts as high as 25 kt. Partly cloudy. Waves 3 to 4 ft.

Thursday

WNW wind 15 to 20 kt, with gusts as high as 25 kt. Mostly sunny. Waves 4 to 5 ft.

Thursday Night

WNW wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 2 to 3 ft.

Friday

WNW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly sunny. Waves around 2 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.