Cahokia Weather Forecast

    • 52
    • 77

    Increasing Clouds

    • 53
    • 77

    Mostly Cloudy

    • 55
    • 80

    Mostly Sunny

    • 57
    • 84

    Partly Sunny

    • 58
    • 81

    Mostly Cloudy

    • 58
    • 76

    Chance Rain Showers

Today 26 Oct St. Clair

Mostly sunny. Highs in the upper 70s. South Winds around 5 Mph.

Tonight 26 Oct St. Clair

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. South Winds around 5 Mph.

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  • Temperature Real-Time

Cahokia Temperature Statistics

October Temperature

St. Louis Downtown Airport (1.9 miles)

  • Lowest 18 October, 2026

    35.7 °F

  • Average October

    64.4 °F

  • Highest 13 October, 2026

    94.6 °F

Climate (2021–2026)

St. Louis Downtown Airport (1.9 miles)

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  • Average Low 2021–2026

    47.7 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    69.5 °F
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