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Marquette, MI Local Forecast Office

3NM WNW Copper Harbor MI

Marine Point Forecast

[NOTICE]

Today
High: 28 °F
E 10kt
2ft
Tonight
Low: 25 °F
E 15kt
2-4ft
Wednesday
High: 29 °F
N 15kt
4-5ft

Small Craft Advisory
Wednesday Night
Low: 21 °F
NNW 20kt
3-5ft

Small Craft Advisory
Thursday
High: 29 °F
NNW 10kt
1-2ft
Thursday Night
Low: 24 °F
⇑ESE 25kt
5ft
Friday
High: 30 °F
N 25kt
7-8ft
Friday Night
Low: 22 °F
NW 20kt
4-6ft
Saturday
High: 28 °F
NW 10kt
1-3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:58 am CDT Mar 10, 2026
Forecast Valid: 11am CDT Mar 10, 2026-6pm CDT Mar 16, 2026

View Nearby Observations

Detailed Forecast

Today

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

Tonight

E wind 10 to 15 kt. Snow likely, mainly after 3am. Waves 2 to 4 ft.

Wednesday

NE wind 10 to 15 kt becoming N in the afternoon. Winds could gust as high as 20 kt. Snow likely, mainly before 7am. Waves 4 to 5 ft.

Wednesday Night

NNW wind 10 to 20 kt. Partly cloudy. Waves 3 to 5 ft.

Thursday

NNW wind 5 to 10 kt becoming ESE in the afternoon. Partly sunny. Waves 1 to 2 ft.

Thursday Night

ESE wind 10 to 15 kt increasing to 20 to 25 kt after midnight. Winds could gust as high as 40 kt. A chance of snow showers. The snow could be heavy at times. Widespread freezing spray after 2am. Waves 1 ft building to 5 ft.

Friday

E wind 20 to 25 kt becoming NNW in the afternoon. Winds could gust as high as 35 kt. A chance of snow showers before 1pm. Widespread freezing spray. Waves 7 to 8 ft.

Friday Night

NW wind 15 to 20 kt. Widespread freezing spray before 2am. Mostly cloudy. Waves 4 to 6 ft.

Saturday

NW wind 5 to 10 kt becoming SE in the afternoon. Mostly cloudy. Waves 1 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.