Cahokia Weather Forecast

    • 64
    • 79

    Becoming Sunny

    • 44
    • 92

    Rain

    • 34
    • 54

    Chance Rain

    • 42
    • 59

    Partly Sunny

    • 55
    • 66

    Slight Chance Thunderstorms

    • 62
    • 83

    Chance Rain

Today 25 Mar St. Clair

Mostly sunny. Not as cool with Highs in the upper 70s. South Winds 10 to 15 Mph.

Tonight 25 Mar St. Clair

Partly cloudy in the Evening, then clearing. Not as cool with Lows in the mid 60s. South Winds around 10 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cahokia Temperature Statistics

March Temperature

St. Louis Downtown Airport (1.9 miles)

  • Lowest 17 March, 2026

    17.7 °F

  • Average March

    53.5 °F

  • Highest 22 March, 2026

    93 °F

Climate (2021–Present)

St. Louis Downtown Airport (1.9 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    69 °F
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