Mackinac State Park Weather Forecast

    • 49
    • 57

    Rain Showers

    • 55
    • 63

    Rain Showers

    • 52
    • 63

    Rain Showers

    • 47
    • 58

    Rain Showers Likely

    • 47
    • 57

    Chance Rain Showers

    • 45
    • 56

    Rain Showers Likely

Today 16 Oct Mackinac Island/Bois Blanc Island

Sunny. Highs in the upper 50s. Light Winds.

Tonight 16 Oct Mackinac Island/Bois Blanc Island

Partly cloudy Early, then cloudy with scattered light rain Showers after midnight. Lows in the upper 40s. Southeast Winds 5 to 10 Mph. Chance of Showers 50 percent.

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Mackinac State Park Temperature Statistics

October Temperature

Mackinac Island Airport (0 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 (0 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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