Cahokia Weather Forecast

    • 41
    • 64

    Gradual Clearing

    • 42
    • 60

    Mostly Sunny

    • 38
    • 63

    Partly Sunny

    • 41
    • 54

    Mostly Cloudy

    • 54
    • 73

    Partly Sunny

    • 55
    • 77

    Partly Sunny

Today 4 Apr St. Clair

Mostly cloudy. A chance of Showers early. Much cooler. Near steady temperature in the mid 50s. West Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 4 Apr St. Clair

Mostly cloudy in the Evening, then clearing. Much cooler with Lows in the upper 30s. Northwest Winds 10 to 15 Mph.

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  • Temperature Real-Time

Cahokia Temperature Statistics

April Temperature

St. Louis Downtown Airport (1.9 miles)

  • Lowest 1 April, 2026

    50 °F

  • Average April

    63.4 °F

  • Highest 2 April, 2026

    75.9 °F

Climate (2021–Present)

St. Louis Downtown Airport (1.9 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    69.1 °F
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