Lake Saint Louis Weather Forecast

    • 69
    • 87

    Chance Thunderstorms

    • 64
    • 86

    Mostly Sunny

    • 67
    • 88

    Mostly Sunny

    • 71
    • 91

    Mostly Sunny

    • 73
    • 92

    Partly Sunny

    • 74
    • 93

    Chance Thunderstorms

    • 72
    • 90

    Chance Thunderstorms

Today 30 Jun St. Charles

Partly sunny with scattered Showers and Thunderstorms. Near steady temperature in the upper 80s. West Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 30 Jun St. Charles

Mostly cloudy. Showers and Thunderstorms Likely, mainly this evening. Lows around 70. Northwest Winds 5 to 10 Mph. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Saint Louis Temperature Statistics

June Temperature

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

  • Lowest 10 June, 2025

    55.7 °F

  • Average June

    76.5 °F

  • Highest 24 June, 2025

    95.6 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    45.8 °F

  • Average 2020–2025

    56.8 °F

  • Average High 2020–2025

    68 °F
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