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Marquette, MI Local Forecast Office

8NM E Copper Harbor MI

Marine Point Forecast

[NOTICE]

Tonight
Low: 29 °F
ESE 20kt
5ft

Small Craft Advisory
Thursday
High: 31 °F
E 30kt
11ft

Gale Warning
Thursday Night
Low: 29 °F
E 30kt
12ft

Gale Warning
Friday
High: 34 °F
N 20kt
8ft
Friday Night
Low: 31 °F
⇑ENE 30kt
9ft
Saturday
High: 34 °F
E 30kt
10ft
Saturday Night
Low: 27 °F
NNW 30kt
11ft
Sunday
High: 34 °F
NW 30kt⇓
11ft
Sunday Night
Low: 28 °F
WNW 15kt
2-3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:13 pm CDT Apr 1, 2026
Forecast Valid: 9pm CDT Apr 1, 2026-6pm CDT Apr 8, 2026

View Nearby Observations

Detailed Forecast

Tonight

ESE wind 15 to 20 kt. Mostly cloudy. Waves 2 ft building to 5 ft.

Thursday

E wind 25 to 30 kt, with gusts as high as 35 kt. Snow before 3pm, then snow, possibly mixed with sleet. The snow could be heavy at times. Widespread freezing spray between 10am and 1pm. Waves 6 ft building to 11 ft.

Thursday Night

E wind 20 to 30 kt becoming NNE after midnight. Winds could gust as high as 35 kt. Snow and sleet likely, becoming all snow after 4am. Waves 12 ft subsiding to 8 ft.

Friday

N wind 15 to 20 kt, with gusts as high as 30 kt. A chance of snow showers before 1pm. Waves 8 ft subsiding to 5 ft.

Friday Night

ENE wind 15 to 20 kt increasing to 25 to 30 kt after midnight. Winds could gust as high as 40 kt. Rain and snow likely, becoming all snow after 4am. Waves 4 ft building to 9 ft.

Saturday

E wind 20 to 30 kt, with gusts as high as 40 kt. Snow before 7am, then rain and snow. Waves 10 ft subsiding to 7 ft.

Saturday Night

NNW wind 25 to 30 kt, with gusts as high as 40 kt. A chance of snow showers. Widespread freezing spray after 2am. Waves 7 ft building to 11 ft.

Sunday

NW wind 25 to 30 kt decreasing to 15 to 20 kt in the afternoon. Winds could gust as high as 40 kt. Widespread freezing spray before 1pm. Partly sunny. Waves 11 ft subsiding to 5 ft.

Sunday Night

WNW wind 10 to 15 kt becoming N after midnight. Mostly cloudy. Waves 2 to 3 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.