Cahokia Weather Forecast

    • 59
    • 87

    Sunny

    • 62
    • 91

    Sunny

    • 61
    • 86

    Rain Showers Likely

    • 61
    • 79

    Mostly Sunny

    • 64
    • 91

    Mostly Sunny

    • 55
    • 81

    Mostly Sunny

Today 8 Oct St. Clair

Patchy dense fog this morning. Sunny. Highs in the mid 80s. Northeast Winds around 5 Mph.

Tonight 8 Oct St. Clair

Mostly clear. Lows in the upper 50s. East Winds around 5 Mph.

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Cahokia Temperature Statistics

October Temperature

St. Louis Downtown Airport (1.9 miles)

  • Lowest 6 October, 2026

    44.1 °F

  • Average October

    65.9 °F

  • Highest 1 October, 2026

    92.6 °F

Climate (2021–2026)

St. Louis Downtown Airport (1.9 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    69.5 °F
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