Cahokia Weather Forecast

    • 64
    • 83

    Increasing Clouds

    • 68
    • 85

    Chance Rain Showers

    • 69
    • 87

    Rain Showers

    • 73
    • 84

    Rain Showers

    • 75
    • 91

    Chance Thunderstorms

    • 77
    • 97

    Mostly Sunny

    • 79
    • 98

    Hot

Today 23 Jun St. Clair

Sunny. Not as cool with Highs in the lower 80s. Northeast Winds around 5 Mph.

Tonight 23 Jun St. Clair

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 60s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cahokia Temperature Statistics

June Temperature

St. Louis Downtown Airport (1.9 miles)

  • Lowest 3 June, 2026

    52.6 °F

  • Average June

    75.3 °F

  • Highest 10 June, 2026

    93.7 °F

Climate (2021–2026)

St. Louis Downtown Airport (1.9 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    69.3 °F
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