Hazardous Weather Conditions

For More Weather Information:

Marquette, MI Local Forecast Office

8NM E Copper Harbor MI

Marine Point Forecast

[NOTICE]

Overnight
Low: 34 °F
Light Wind
< 1ft
Thursday
High: 38 °F
Light Wind
< 1ft
Thursday Night
Low: 34 °F
SE 15kt
1-2ft
Friday
High: 45 °F
SE 20kt
3-5ft
Friday Night
Low: 30 °F
W 20kt
4-6ft
Saturday
High: 33 °F
WNW 25kt
6-7ft
Saturday Night
Low: 25 °F
WNW 30kt
10ft
Sunday
High: 32 °F
NW 25kt⇓
10ft
Sunday Night
Low: 30 °F
NW 15kt
3-4ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 11:22 pm CDT Apr 15, 2026
Forecast Valid: 12am CDT Apr 16, 2026-6pm CDT Apr 22, 2026

View Nearby Observations

Detailed Forecast

Overnight

Variable winds 5 kt or less. Areas of dense fog. Waves 1 ft or less.

Thursday

Variable winds 5 kt or less. Areas of dense fog before noon, then Patchy dense fog between 1pm and 2pm. Waves 1 ft or less.

Thursday Night

SE wind 5 to 15 kt. Patchy fog before 8pm. Waves 1 to 2 ft.

Friday

SE wind 15 to 20 kt, with gusts as high as 30 kt. A slight chance of showers after 1pm. Waves 3 to 5 ft.

Friday Night

SSE wind around 20 kt becoming WNW after midnight. Winds could gust as high as 30 kt. Showers and possibly a thunderstorm before 1am, then a chance of showers. Waves 4 to 6 ft.

Saturday

WNW wind around 25 kt, with gusts as high as 35 kt. Mostly cloudy. Waves 6 to 7 ft.

Saturday Night

WNW wind 25 to 30 kt, with gusts as high as 35 kt. A chance of snow showers after 1am. Waves 7 ft building to 10 ft.

Sunday

NW wind 20 to 25 kt decreasing to 15 to 20 kt in the afternoon. Winds could gust as high as 35 kt. Partly sunny. Waves 10 ft subsiding to 5 ft.

Sunday Night

NW wind 10 to 15 kt. Partly cloudy. Waves 3 to 4 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.