Big Bay Weather Forecast

    • 46
    • 52

    Rain Showers Likely

    • 44
    • 59

    Rain Showers

    • 39
    • 50

    Partly Sunny

    • 37
    • 48

    Partly Sunny

    • 41
    • 50

    Chance Rain Showers

    • 42
    • 53

    Chance Rain Showers

    • 40
    • 52

    Mostly Cloudy

Today 27 Oct Keweenaw

Mostly cloudy. Lows around 39. Highs around 48.

Tonight 27 Oct Keweenaw

Cloudy. A chance of rain Showers with patchy drizzle in the evening. Near steady temperature in the upper 40s. South Winds 5 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Bay Temperature Statistics

October Temperature

Copper Harbor (6.2 miles)

  • Lowest 20 October, 2026

    35.1 °F

  • Average October

    52.7 °F

  • Highest 11 October, 2026

    77 °F

Climate (2021–2026)

Copper Harbor (6.2 miles)

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  • Average Low 2021–2026

    38.1 °F

  • Average 2021–2026

    44.3 °F

  • Average High 2021–2026

    50.5 °F
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