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Marquette, MI Local Forecast Office

Copper Harbor MI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:S wind 10 to 15 km/h. A slight chance of showers after 4am.   Waves 1 m or less.

      Low: 17 °C

      S 15km/h
      < 1m

    • Saturday

      Saturday:SW wind 10 to 15 km/h becoming W 15 to 20 km/h in the afternoon. A chance of showers, with thunderstorms also possible after 1pm.  Areas of smoke after 4pm.  Waves 1 m or less.

      High: 15 °C

      ⇑W 20km/h
      < 1m

    • Saturday Night

      Saturday Night:W wind 15 to 20 km/h, with gusts as high as 35 km/h. Areas of smoke before 7pm.  Waves 1 m or less.

      Low: 14 °C

      W 20km/h
      < 1m

    • Sunday

      Sunday:WSW wind 20 to 25 km/h, with gusts as high as 35 km/h. Sunny. Waves 1 m or less.

      High: 23 °C

      WSW 25km/h
      < 1m

    • Sunday Night

      Sunday Night:SSW wind 15 to 25 km/h. A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 4am, then a slight chance of showers after 4am.   Waves 1 m or less.

      Low: 14 °C

      SSW 25km/h
      < 1m

    • Monday

      Monday:W wind 15 to 20 km/h, with gusts as high as 30 km/h. Sunny. Waves 1 m or less.

      High: 20 °C

      W 20km/h
      < 1m

    • Monday Night

      Monday Night:W wind around 10 km/h becoming SE after midnight. Partly cloudy. Waves 1 m or less.

      Low: 12 °C

      SE 10km/h
      < 1m

    • Tuesday

      Tuesday:SE wind around 15 km/h, with gusts as high as 25 km/h. A chance of showers and thunderstorms.   Waves 1 m or less.

      High: 20 °C

      SE 15km/h
      < 1m

    • Tuesday Night

      Tuesday Night:SSW wind 15 to 20 km/h becoming NW after midnight. Winds could gust as high as 25 km/h. A chance of showers.   Waves 1 m or less.

      Low: 12 °C

      NW 20km/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: 6:11 pm CDT Jul 11, 2025
Forecast Valid: 8pm CDT Jul 11, 2025-6pm CDT Jul 18, 2025

View Nearby Observations

Detailed Forecast

Tonight
S wind 10 to 15 km/h. A slight chance of showers after 4am. Waves 1 m or less.
Saturday
SW wind 10 to 15 km/h becoming W 15 to 20 km/h in the afternoon. A chance of showers, with thunderstorms also possible after 1pm. Areas of smoke after 4pm. Waves 1 m or less.
Saturday Night
W wind 15 to 20 km/h, with gusts as high as 35 km/h. Areas of smoke before 7pm. Waves 1 m or less.
Sunday
WSW wind 20 to 25 km/h, with gusts as high as 35 km/h. Sunny. Waves 1 m or less.
Sunday Night
SSW wind 15 to 25 km/h. A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 4am, then a slight chance of showers after 4am. Waves 1 m or less.
Monday
W wind 15 to 20 km/h, with gusts as high as 30 km/h. Sunny. Waves 1 m or less.
Monday Night
W wind around 10 km/h becoming SE after midnight. Partly cloudy. Waves 1 m or less.
Tuesday
SE wind around 15 km/h, with gusts as high as 25 km/h. A chance of showers and thunderstorms. Waves 1 m or less.
Tuesday Night
SSW wind 15 to 20 km/h becoming NW after midnight. Winds could gust as high as 25 km/h. A chance of showers. 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: 6:11 pm CDT Jul 11, 2025
Forecast Valid: 8pm CDT Jul 11, 2025-6pm CDT Jul 18, 2025
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