Lake St Louis Weather Forecast

    • 53
    • 67

    Mostly Cloudy

    • 56
    • 64

    Mostly Cloudy

    • 47
    • 69

    Partly Sunny

    • 42
    • 71

    Mostly Cloudy

    • 17
    • 50

    Partly Sunny

    • 15
    • 27

    Mostly Sunny

Today 24 Dec St. Charles

Cloudy. Patchy drizzle this morning. Areas of dense fog this morning. Highs in the mid 60s. Southeast Winds 5 to 10 Mph.

Tonight 24 Dec St. Charles

Mostly cloudy. Patchy fog. Lows in the lower 50s. South Winds around 5 Mph, becoming west after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake St Louis Temperature Statistics

December Temperature

St. Louis, Spirit Of St. Louis Airport (10.6 miles)

  • Lowest 14 December, 2025

    7 °F

  • Average December

    33 °F

  • Highest 18 December, 2025

    57.9 °F

Climate (2020–Present)

St. Louis, Spirit Of St. Louis Airport (10.6 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