Cottleville Weather Forecast

    • 70
    • 94

    Increasing Clouds

    • 69
    • 86

    Rain Showers

    • 64
    • 82

    Rain Showers

    • 60
    • 73

    Rain Showers Likely

    • 57
    • 72

    Mostly Cloudy

    • 56
    • 73

    Mostly Sunny

    • 57
    • 74

    Mostly Sunny

Today 20 Sep St. Charles

Mostly sunny. A slight chance of Showers and Thunderstorms in the morning. Highs in the lower 90s. Chance of rain 20 percent.

Tonight 20 Sep St. Charles

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 60s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cottleville Temperature Statistics

September Temperature

St. Louis, Spirit Of St. Louis Airport (6.2 miles)

  • Lowest 8 September, 2024

    40.6 °F

  • Average September

    69.2 °F

  • Highest 1 September, 2024

    90.6 °F

Climate (2019–Present)

St. Louis, Spirit Of St. Louis Airport (6.2 miles)

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  • Average Low 2019–2024

    46 °F

  • Average 2019–2024

    56.7 °F

  • Average High 2019–2024

    67.8 °F
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