Rock Harbor Weather Forecast

    • 46
    • 61

    Slight Chance Rain Showers

    • 45
    • 51

    Partly Sunny

    • 45
    • 51

    Rain Showers Likely

    • 40
    • 46

    Chance Rain Showers

    • 41
    • 46

    Chance Rain Showers

    • 43
    • 48

    Chance Rain Showers

Today 18 Oct Keweenaw

Mostly sunny. Highs 60 to 65. West Winds 5 to 10 Mph.

Tonight 18 Oct Keweenaw

A slight chance of rain Showers in the Evening, then a chance of rain Showers after midnight. Cloudy. Lows around 46. Northwest Winds 5 to 15 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rock Harbor Temperature Statistics

October Temperature

Copper Harbor (54.1 miles)

  • Lowest 8 October, 2025

    39.9 °F

  • Average October

    57.4 °F

  • Highest 4 October, 2025

    82.9 °F

Climate (2020–Present)

Copper Harbor (54.1 miles)

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  • Average Low 2020–2025

    38.6 °F

  • Average 2020–2025

    44.8 °F

  • Average High 2020–2025

    51 °F
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