Fort Gratiot Charter Township Weather Forecast

    • 70
    • 88

    Chance Thunderstorms

    • 68
    • 89

    Rain Showers Likely

    • 65
    • 81

    Chance Rain Showers

    • 63
    • 79

    Partly Sunny

    • 61
    • 78

    Mostly Sunny

    • 61
    • 79

    Partly Sunny

Today 1 Sep St. Clair

Mostly sunny with a chance of Showers in the Morning, then partly cloudy in the afternoon. Highs around 90. West Winds up to 5 Mph, becoming northwest in the late afternoon. Chance of rain 30 percent. Heat index Readings in the upper 90s.

Tonight 1 Sep St. Clair

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Showers and Thunderstorms. Lows around 70. South Winds up to 5 Mph, becoming southwest after midnight. Chance of rain 30 percent.

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Fort Gratiot Charter Township Temperature Statistics

September Temperature

St Clair County International Airport (9.3 miles)

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Climate (2021–2026)

St Clair County International Airport (9.3 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    49.5 °F

  • Average High 2021–2026

    58.8 °F
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