Cahokia Weather Forecast

    • 58
    • 82

    Increasing Clouds

    • 58
    • 79

    Mostly Cloudy

    • 57
    • 73

    Chance Rain Showers

    • 56
    • 73

    Chance Rain Showers

    • 59
    • 73

    Rain Showers Likely

    • 55
    • 72

    Rain Showers Likely

Today 29 Oct St. Clair

Mostly sunny. Highs in the lower 80s. Southwest Winds around 5 Mph.

Tonight 29 Oct St. Clair

Partly cloudy in the Evening, then becoming mostly cloudy. A 20 percent chance of Showers. Lows in the upper 50s. North Winds around 5 Mph, becoming northeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cahokia Temperature Statistics

October Temperature

St. Louis Downtown Airport (1.9 miles)

  • Lowest 18 October, 2026

    35.7 °F

  • Average October

    64.1 °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

    69.6 °F
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