Bay City Weather Forecast

    • 57
    • 81

    Mostly Sunny

    • 57
    • 81

    Partly Sunny

    • 52
    • 69

    Partly Sunny

    • 58
    • 77

    Mostly Cloudy

    • 62
    • 82

    Chance Rain Showers

    • 61
    • 80

    Chance Rain Showers

Today 17 Sep Bay

Sunny. Highs in the lower 80s. Light and variable Winds, becoming east up to 5 Mph in the afternoon.

Tonight 17 Sep Bay

Mostly clear. Lows in the mid 50s. Southeast Winds up to 5 Mph, becoming west after midnight.

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Bay City Temperature Statistics

September Temperature

MBS International Airport (10.6 miles)

  • Lowest 8 September, 2025

    41 °F

  • Average September

    60.7 °F

  • Highest 14 September, 2025

    81 °F

Climate (2020–Present)

MBS International Airport (10.6 miles)

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  • Average Low 2020–2025

    41.7 °F

  • Average 2020–2025

    50.3 °F

  • Average High 2020–2025

    59 °F
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