Mackinac Island Airport Weather Forecast

    • 16
    • 41

    Rain Showers

    • 17
    • 22

    Snow Showers Likely

    • 17
    • 32

    Snow Showers Likely

    • 18
    • 22

    Mostly Cloudy

    • 26
    • 30

    Chance Snow Showers

    • 22
    • 34

    Mostly Cloudy

Today 18 Dec Mackinac Island/Bois Blanc Island

Mostly cloudy. Chance of rain Showers Early, then rain Showers in the afternoon. Highs in the lower 40s. South Winds 10 to 20 Mph.

Tonight 18 Dec Mackinac Island/Bois Blanc Island

Mostly cloudy. Light rain Showers Early, then chance of snow Showers after midnight. Windy. Total nighttime snow accumulation up to 1 inch. Lows around 15. Southwest Winds 15 to 20 Mph shifting to the west 20 to 30 Mph after midnight. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

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Mackinac Island Airport Temperature Statistics

December Temperature

Mackinac Island Airport (0 miles)

  • Lowest 14 December, 2025

    3.2 °F

  • Average December

    22.1 °F

  • Highest 16 December, 2025

    39.2 °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

    51.2 °F
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