Copper Harbor Weather Forecast

    • 46
    • 51

    Slight Chance Rain Showers

    • 47
    • 57

    Rain Showers

    • 42
    • 54

    Rain Showers

    • 39
    • 49

    Rain Showers Likely

    • 42
    • 50

    Slight Chance Rain Showers

    • 45
    • 54

    Mostly Cloudy

Today 19 Oct Keweenaw

Cooler. A slight chance of rain Showers in the afternoon. Mostly cloudy. Highs around 50. Northwest Winds 10 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 19 Oct Keweenaw

Partly cloudy. Lows around 42. Northwest Winds 5 to 15 Mph. Gusts up to 30 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Copper Harbor Temperature Statistics

October Temperature

Copper Harbor (0.6 miles)

  • Lowest 16 October, 2025

    39 °F

  • Average October

    56.8 °F

  • Highest 4 October, 2025

    82.9 °F

Climate (2020–Present)

Copper Harbor (0.6 miles)

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  • Average Low 2020–2025

    38.7 °F

  • Average 2020–2025

    44.8 °F

  • Average High 2020–2025

    51 °F
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