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Marquette, MI Local Forecast Office

Copper Harbor MI

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:WSW wind around 10 km/h. Mostly cloudy. Waves 1 m or less.

      Low: 15 °C

      WSW 10km/h
      < 1m

    • Tuesday

      Tuesday:Variable winds 5 km/h or less. Mostly sunny. Waves 1 m or less.

      High: 22 °C

      Light Wind
      < 1m

    • Tuesday Night

      Tuesday Night:Variable winds 5 km/h or less. Mostly cloudy. Waves 1 m or less.

      Low: 14 °C

      Light Wind
      < 1m

    • Wednesday

      Wednesday:W wind 5 to 10 km/h becoming N in the afternoon. Mostly sunny. Waves 1 m or less.

      High: 17 °C

      NW 10km/h
      < 1m

    • Wednesday Night

      Wednesday Night:Variable winds less than 5 km/h becoming W 5 to 10 km/h after midnight. Mostly cloudy. Waves 1 m or less.

      Low: 13 °C

      ⇑W 10km/h
      < 1m

    • Thursday

      Thursday:NW wind around 10 km/h. Mostly sunny. Waves 1 m or less.

      High: 19 °C

      NW 10km/h
      < 1m

    • Thursday Night

      Thursday Night:NW wind 5 to 10 km/h. Partly cloudy. Waves 1 m or less.

      Low: 13 °C

      NW 10km/h
      < 1m

    • Friday

      Friday:Variable winds 5 km/h or less. Mostly sunny. Waves 1 m or less.

      High: 18 °C

      Light Wind
      < 1m

    • Friday Night

      Friday Night:SSE wind 5 to 10 km/h. Mostly cloudy. Waves 1 m or less.

      Low: 14 °C

      SSE 10km/h
      < 1m


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 11:43 pm CDT Aug 10, 2026
Forecast Valid: 12am CDT Aug 11, 2026-6pm CDT Aug 17, 2026

View Nearby Observations

Detailed Forecast

Overnight
WSW wind around 10 km/h. Mostly cloudy. Waves 1 m or less.
Tuesday
Variable winds 5 km/h or less. Mostly sunny. Waves 1 m or less.
Tuesday Night
Variable winds 5 km/h or less. Mostly cloudy. Waves 1 m or less.
Wednesday
W wind 5 to 10 km/h becoming N in the afternoon. Mostly sunny. Waves 1 m or less.
Wednesday Night
Variable winds less than 5 km/h becoming W 5 to 10 km/h after midnight. Mostly cloudy. Waves 1 m or less.
Thursday
NW wind around 10 km/h. Mostly sunny. Waves 1 m or less.
Thursday Night
NW wind 5 to 10 km/h. Partly cloudy. Waves 1 m or less.
Friday
Variable winds 5 km/h or less. Mostly sunny. Waves 1 m or less.
Friday Night
SSE wind 5 to 10 km/h. Mostly cloudy. Waves 1 m or less.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 47.48°N 87.89°W
Last Update: 11:43 pm CDT Aug 10, 2026
Forecast Valid: 12am CDT Aug 11, 2026-6pm CDT Aug 17, 2026
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