For More Weather Information:

Marquette, MI Local Forecast Office

8NM E Copper Harbor MI

Marine Point Forecast

[NOTICE]

Overnight
Low: 29 °F
NW 15kt
1-2ft
Monday
High: 33 °F
NE 10kt
2ft
Monday Night
Low: 30 °F
E 20kt
5ft

Small Craft Advisory
Tuesday
High: 31 °F
E 20kt
6-7ft

Small Craft Advisory
Tuesday Night
Low: 21 °F
N 20kt
4-5ft
Wednesday
High: 29 °F
NNE 15kt
4ft
Wednesday Night
Low: 24 °F
⇑E 20kt
4ft
Thursday
High: 31 °F
E 30kt
5-7ft
Thursday Night
Low: 29 °F
ENE 30kt
8-9ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 11:46 pm CDT Mar 29, 2026
Forecast Valid: 11pm CDT Mar 29, 2026-6pm CDT Apr 5, 2026

View Nearby Observations

Detailed Forecast

Overnight

NW wind 10 to 15 kt. Mostly cloudy. Waves 1 to 2 ft.

Monday

NNW wind around 10 kt becoming NE in the afternoon. Mostly cloudy. Waves around 2 ft.

Monday Night

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

Tuesday

E wind 10 to 20 kt. Snow showers likely before 1pm, then a chance of snow showers and sleet between 1pm and 4pm, then a chance of snow showers after 4pm. Waves 6 to 7 ft.

Tuesday Night

N wind 10 to 20 kt. A slight chance of snow showers before 1am. Widespread freezing spray between 1am and 4am. Waves 4 to 5 ft.

Wednesday

NNE wind 10 to 15 kt. Partly sunny. Waves 4 ft subsiding to 1 ft.

Wednesday Night

E wind 10 to 15 kt increasing to 15 to 20 kt after midnight. Winds could gust as high as 30 kt. Mostly cloudy. Waves 1 ft building to 4 ft.

Thursday

E wind 25 to 30 kt, with gusts as high as 40 kt. A chance of snow showers. Widespread freezing spray between 9am and 3pm. Waves 5 to 7 ft.

Thursday Night

ENE wind 25 to 30 kt, with gusts as high as 45 kt. Snow showers likely. Waves 8 to 9 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.