Croswell Weather Forecast

    • 56
    • 76

    Decreasing Clouds

    • 56
    • 76

    Mostly Sunny

    • 54
    • 78

    Mostly Sunny

    • 55
    • 78

    Mostly Sunny

    • 57
    • 79

    Partly Sunny

    • 57
    • 81

    Mostly Cloudy

Today 13 Sep Sanilac

Mostly cloudy. A slight chance of Showers in the morning. Highs in the upper 70s. West Winds around 5 Mph, becoming south up to 5 Mph in the afternoon. Chance of rain 20 percent.

Tonight 13 Sep Sanilac

Partly cloudy. Lows in the mid 50s. Southeast Winds up to 5 Mph, becoming southwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Croswell Temperature Statistics

September Temperature

St Clair County International Airport (25.5 miles)

  • Lowest 7 September, 2025

    37.4 °F

  • Average September

    57.5 °F

  • Highest 3 September, 2025

    80.6 °F

Climate (2020–Present)

St Clair County International Airport (25.5 miles)

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  • Average Low 2020–2025

    40 °F

  • Average 2020–2025

    49.5 °F

  • Average High 2020–2025

    58.6 °F
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