St Clair Weather Forecast

    • 59
    • 75

    Rain Showers Likely

    • 59
    • 78

    Rain Showers

    • 57
    • 69

    Rain Showers

    • 50
    • 70

    Rain Showers Likely

    • 51
    • 68

    Rain Showers Likely

    • 42
    • 70

    Rain Showers Likely

    • 31
    • 51

    Mostly Cloudy

Today 13 Apr St. Clair

Mostly cloudy in the Morning, then becoming partly cloudy. Highs in the mid 70s. West Winds 5 to 20 Mph with Gusts up to 30 Mph.

Tonight 13 Apr St. Clair

Partly cloudy in the evening. A chance of Showers and Thunderstorms in the Evening, then Showers likely and a chance of Thunderstorms. Patchy fog early in the morning. Lows in the upper 50s. Southeast Winds up to 10 Mph, becoming south early in the morning. Chance of rain 70 percent.

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St Clair Temperature Statistics

April Temperature

St Clair County International Airport (6.2 miles)

  • Lowest 7 April, 2026

    23 °F

  • Average April

    42.1 °F

  • Highest 3 April, 2026

    71.6 °F

Climate (2021–Present)

St Clair County International Airport (6.2 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    49.4 °F

  • Average High 2021–2026

    58.6 °F
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