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Marquette, MI Local Forecast Office

8NM E Copper Harbor MI

Marine Point Forecast

[NOTICE]

Tuesday
High: 31 °F
ENE 20kt
5-7ft

Small Craft Advisory
Tuesday Night
Low: 23 °F
NNE 20kt
4-5ft

Small Craft Advisory
Wednesday
High: 30 °F
ENE 15kt
2-4ft
Wednesday Night
Low: 26 °F
E 20kt
6ft
Thursday
High: 32 °F
E 30kt
11ft
Thursday Night
Low: 30 °F
ENE 30kt
12ft
Friday
High: 34 °F
N 20kt
8ft
Friday Night
Low: 31 °F
⇑ENE 25kt
8ft
Saturday
High: 34 °F
E 30kt
9-10ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:18 am CDT Mar 31, 2026
Forecast Valid: 4am CDT Mar 31, 2026-6pm CDT Apr 6, 2026

View Nearby Observations

Detailed Forecast

Tuesday

ENE wind 10 to 20 kt, with gusts as high as 25 kt. Snow showers, mainly before 4pm. Patchy fog. Waves 5 to 7 ft.

Tuesday Night

NNE wind 15 to 20 kt. A slight chance of snow showers before 8pm. Waves 4 to 5 ft.

Wednesday

ENE wind 10 to 15 kt. Mostly cloudy. Waves 2 to 4 ft.

Wednesday Night

E wind 15 to 20 kt, with gusts as high as 25 kt. Mostly cloudy. Waves 2 ft building to 6 ft.

Thursday

E wind 25 to 30 kt. Snow, mainly after 1pm. The snow could be heavy at times. Waves 7 ft building to 11 ft.

Thursday Night

ENE wind 20 to 30 kt becoming NNE after midnight. Snow, mainly before 1am. Waves 12 ft subsiding to 9 ft.

Friday

N wind around 20 kt, with gusts as high as 25 kt. Mostly cloudy. Waves 8 ft subsiding to 5 ft.

Friday Night

ENE wind 15 to 20 kt increasing to 20 to 25 kt after midnight. Winds could gust as high as 35 kt. A chance of rain and snow showers after 1am. Waves 4 ft building to 8 ft.

Saturday

E wind 20 to 30 kt, with gusts as high as 35 kt. Rain and snow showers likely. Waves 9 to 10 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.