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Marquette, MI Local Forecast Office

3NM N Copper Harbor MI

Marine Point Forecast

[NOTICE]

Tonight
Low: 65 °F
Light Wind
< 1ft
Labor Day
High: 68 °F
W 10kt
< 1ft
Monday Night
Low: 66 °F
Light Wind
< 1ft
Tuesday
High: 69 °F
Light Wind
< 1ft
Tuesday Night
Low: 55 °F
SSW 10kt
< 1ft
Wednesday
High: 60 °F
NW 20kt
5ft
Wednesday Night
Low: 47 °F
NNW 20kt
5ft
Thursday
High: 53 °F
W 15kt
3-4ft
Thursday Night
Low: 48 °F
W 10kt
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: 4:25 pm CDT Aug 31, 2025
Forecast Valid: 8pm CDT Aug 31, 2025-6pm CDT Sep 7, 2025

View Nearby Observations

Detailed Forecast

Tonight

Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

Labor Day

SW wind 5 to 10 kt becoming W in the afternoon. Sunny. Waves 1 ft or less.

Monday Night

Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

Tuesday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Tuesday Night

SSE wind 5 to 10 kt becoming SW after midnight. A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Waves 1 ft or less.

Wednesday

W wind 15 to 20 kt becoming NNW in the afternoon. Winds could gust as high as 30 kt. Showers, mainly before 1pm. Waves 2 ft building to 5 ft.

Wednesday Night

NNW wind 15 to 20 kt, with gusts as high as 25 kt. A chance of showers. Waves around 5 ft.

Thursday

W wind around 15 kt, with gusts as high as 25 kt. A chance of showers. Waves 3 to 4 ft.

Thursday Night

W wind around 10 kt, with gusts as high as 20 kt. A chance of showers. 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.