Mackinac Island Weather Forecast

    • 18
    • 30

    Slight Chance Snow

    • 24
    • 36

    Snow Likely

    • 29
    • 37

    Rain/Snow Likely

    • 13
    • 36

    Chance Rain/Snow

    • 16
    • 25

    Partly Sunny

    • 23
    • 32

    Partly Sunny

Today 23 Mar Mackinac Island/Bois Blanc Island

Partly sunny. Highs in the lower 30s. Northwest Winds 5 to 10 Mph.

Tonight 23 Mar Mackinac Island/Bois Blanc Island

Mostly cloudy. Slight chance of light freezing drizzle. Lows around 14. North Winds 5 to 10 Mph.

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Mackinac Island Temperature Statistics

March Temperature

Mackinac Island Airport (0 miles)

  • Lowest 1 March, 2026

    5 °F

  • Average March

    28.2 °F

  • Highest 9 March, 2026

    50 °F

Climate (2021–Present)

Mackinac Island Airport (0 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    44.7 °F

  • Average High 2021–2026

    51 °F
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