Lake Saint Louis Weather Forecast

    • 59
    • 90

    Sunny

    • 56
    • 82

    Mostly Cloudy

    • 61
    • 84

    Mostly Sunny

    • 67
    • 92

    Mostly Sunny

    • 60
    • 86

    Chance Rain Showers

    • 62
    • 81

    Chance Rain Showers

Today 9 Oct St. Charles

Patchy fog in the morning. Sunny. Highs in the upper 80s. South Winds 5 to 10 Mph.

Tonight 9 Oct St. Charles

Clear in the Evening, then becoming partly cloudy. Lows in the upper 50s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Saint Louis Temperature Statistics

October Temperature

St. Louis, Spirit Of St. Louis Airport (11.2 miles)

  • Lowest 6 October, 2026

    43 °F

  • Average October

    63.4 °F

  • Highest 1 October, 2026

    89.7 °F

Climate (2021–2026)

St. Louis, Spirit Of St. Louis Airport (11.2 miles)

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  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    57.6 °F

  • Average High 2021–2026

    69 °F
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