Cottleville Weather Forecast

    • 23
    • 58

    Rain

    • 32
    • 39

    Mostly Sunny

    • 27
    • 55

    Partly Sunny

    • 29
    • 42

    Partly Sunny

    • 41
    • 48

    Mostly Cloudy

    • 49
    • 62

    Mostly Cloudy

    • 54
    • 67

    Mostly Cloudy

Today 18 Dec St. Charles

Rain with a slight chance of Thunderstorms Early, then rain. Highs in the upper 50s. Temperature falling into the mid 40s. South Winds around 20 Mph, becoming west. Gusts up to 45 Mph. Chance of rain near 100 percent.

Tonight 18 Dec St. Charles

Mostly cloudy. Scattered rain Showers and Flurries this evening. Breezy and much cooler with Lows in the mid 20s. Northwest Winds 15 to 25 Mph with Gusts up to 45 Mph. Chance of precipitation 30 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Cottleville Temperature Statistics

December Temperature

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

  • Lowest 14 December, 2025

    7 °F

  • Average December

    30.5 °F

  • Highest 9 December, 2025

    57 °F

Climate (2020–Present)

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

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    45.9 °F

  • Average 2020–2025

    57 °F

  • Average High 2020–2025

    68.2 °F
Get WillyWeather+ to remove ads