Mackinac State Park Weather Forecast

    • 65
    • 74

    Increasing Clouds

    • 59
    • 73

    Rain Showers Likely

    • 55
    • 68

    Rain Showers Likely

    • 53
    • 61

    Rain Showers

    • 54
    • 67

    Mostly Sunny

    • 59
    • 68

    Partly Sunny

Today 22 Aug Mackinac Island/Bois Blanc Island

Partly sunny. Highs in the upper 70s. Southwest Winds 5 to 15 Mph.

Tonight 22 Aug Mackinac Island/Bois Blanc Island

Mostly cloudy with chance of light Showers and Thunderstorms Early, then partly cloudy with rain Showers likely and chance of Thunderstorms after midnight. Lows in the mid 60s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight. Chance of precipitation 70 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mackinac State Park Temperature Statistics

August Temperature

Mackinac Island Airport (0 miles)

  • Lowest 1 August, 2025

    53.6 °F

  • Average August

    69.8 °F

  • Highest 9 August, 2025

    89.6 °F

Climate (2020–Present)

Mackinac Island Airport (0 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    38.4 °F

  • Average 2020–2025

    44.8 °F

  • Average High 2020–2025

    51.1 °F
Get WillyWeather+ to remove ads