St Ignace Weather Forecast

    • 50
    • 72

    Increasing Clouds

    • 48
    • 69

    Mostly Cloudy

    • 48
    • 67

    Partly Sunny

    • 44
    • 69

    Rain Showers

    • 42
    • 62

    Mostly Sunny

    • 44
    • 64

    Mostly Sunny

    • 51
    • 68

    Mostly Sunny

Today 27 May Eastern Mackinac

Partly sunny. Highs in the mid 70s. Southeast Winds up to 10 Mph.

Tonight 27 May Eastern Mackinac

Partly cloudy early then becoming mostly cloudy. Lows in the upper 40s. Light Winds.

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St Ignace Temperature Statistics

May Temperature

Mackinac Island Airport (4.3 miles)

  • Lowest 8 May, 2025

    32 °F

  • Average May

    48 °F

  • Highest 12 May, 2025

    69.8 °F

Climate (2020–Present)

Mackinac Island Airport (4.3 miles)

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  • Average Low 2020–2025

    38.4 °F

  • Average 2020–2025

    44.8 °F

  • Average High 2020–2025

    51.2 °F
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