Marquette Bay Weather Forecast

    • 49
    • 57

    Rain Showers

    • 55
    • 59

    Rain Showers

    • 52
    • 62

    Rain Showers Likely

    • 46
    • 56

    Rain Showers Likely

    • 47
    • 56

    Chance Rain Showers

    • 45
    • 55

    Rain Showers Likely

Today 16 Oct Eastern Mackinac

Mostly sunny. Highs in the upper 50s. Light Winds.

Tonight 16 Oct Eastern Mackinac

Mostly cloudy. Isolated rain Showers Early, then numerous rain Showers after midnight. Lows in the upper 40s. South Winds up to 10 Mph. Gusts up to 20 Mph after midnight. Chance of Showers 70 percent.

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Marquette Bay Temperature Statistics

October Temperature

Mackinac Island Airport (11.8 miles)

  • Lowest 8 October, 2025

    39.2 °F

  • Average October

    57.8 °F

  • Highest 4 October, 2025

    78.8 °F

Climate (2020–Present)

Mackinac Island Airport (11.8 miles)

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  • Average Low 2020–2025

    38.5 °F

  • Average 2020–2025

    44.9 °F

  • Average High 2020–2025

    51.3 °F
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