Bay City Lake Weather Forecast

    • 44
    • 63

    Rain Showers

    • 54
    • 65

    Rain Showers

    • 49
    • 73

    Chance Rain Showers

    • 53
    • 69

    Mostly Cloudy

    • 50
    • 72

    Partly Sunny

    • 53
    • 69

    Chance Rain Showers

Today 13 Sep Eastern Mackinac

Partly sunny. Isolated rain Showers Early, then scattered rain Showers in the afternoon. Highs in the mid 60s. Northwest Winds 5 to 15 Mph with Gusts to around 30 Mph. Chance of Showers 50 percent.

Tonight 13 Sep Eastern Mackinac

Mostly clear. Isolated rain Showers early. Lows in the lower 40s. Northwest Winds up to 10 Mph. Gusts up to 25 Mph early. Chance of Showers 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bay City Lake Temperature Statistics

September Temperature

Sault Ste Marie, Chippewa County International Airport (14.3 miles)

  • Lowest 11 September, 2026

    46 °F

  • Average September

    65 °F

  • Highest 1 September, 2026

    82 °F

Climate (2021–2026)

Sault Ste Marie, Chippewa County International Airport (14.3 miles)

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  • Average Low 2021–2026

    35.3 °F

  • Average 2021–2026

    43.5 °F

  • Average High 2021–2026

    51.7 °F
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