Cahokia Weather Forecast

    • 66
    • 83

    Chance Drizzle

    • 66
    • 87

    Partly Sunny

    • 69
    • 89

    Mostly Sunny

    • 71
    • 90

    Partly Sunny

    • 72
    • 89

    Chance Thunderstorms

    • 74
    • 92

    Slight Chance Thunderstorms

Today 2 Aug St. Clair

Mostly sunny. A chance of drizzle in the morning. Highs in the lower 80s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 2 Aug St. Clair

Drizzle and Showers. Near steady temperature in the upper 60s. North Winds 10 to 15 Mph. Chance of rain near 100 percent.

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Cahokia Temperature Statistics

August Temperature

St. Louis Downtown Airport (1.9 miles)

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  • Average August

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Climate (2021–2026)

St. Louis Downtown Airport (1.9 miles)

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  • Average Low 2021–2026

    47.7 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    69.3 °F
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