Cahokia Weather Forecast

    • 64
    • 84

    Rain Showers

    • 53
    • 76

    Rain Showers

    • 56
    • 78

    Partly Sunny

    • 63
    • 75

    Rain Showers

    • 55
    • 81

    Rain Showers

    • 52
    • 74

    Mostly Sunny

    • 52
    • 73

    Chance Rain Showers

Today 23 Apr St. Clair

Mostly sunny. Near steady temperature in the lower 80s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 23 Apr St. Clair

Partly cloudy this Evening, then mostly cloudy with Showers with a chance of Thunderstorms after midnight. Lows in the lower 60s. South Winds 15 to 20 Mph. Gusts up to 35 Mph this evening. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cahokia Temperature Statistics

April Temperature

St. Louis Downtown Airport (1.9 miles)

  • Lowest 6 April, 2026

    37.7 °F

  • Average April

    63.6 °F

  • Highest 14 April, 2026

    90.6 °F

Climate (2021–Present)

St. Louis Downtown Airport (1.9 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    69.2 °F
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