Cahokia Weather Forecast

    • 4
    • 14

    Increasing Clouds

    • 10
    • 13

    Snow

    • 0
    • 16

    Snow

    • 6
    • 18

    Mostly Sunny

    • 10
    • 33

    Partly Sunny

    • 4
    • 25

    Partly Sunny

Today 23 Jan St. Clair

Mostly cloudy and much cooler. Near steady temperature around 9 above. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Wind chill Values as low as 10 below.

Tonight 23 Jan St. Clair

Cloudy, cold. Near steady temperature around 5 above. Northeast Winds 10 to 15 Mph. Wind chill Values as low as 12 below.

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Cahokia Temperature Statistics

January Temperature

St. Louis Downtown Airport (1.9 miles)

  • Lowest 20 January, 2026

    8.1 °F

  • Average January

    37 °F

  • Highest 6 January, 2026

    68 °F

Climate (2021–Present)

St. Louis Downtown Airport (1.9 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    68.7 °F
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