Lake Saint Louis Weather Forecast

    • 44
    • 51

    Rain

    • 32
    • 50

    Chance Rain

    • 42
    • 51

    Partly Sunny

    • 39
    • 64

    Mostly Cloudy

    • 30
    • 55

    Partly Sunny

    • 36
    • 47

    Chance Rain

Today 30 Jan St. Charles

A slight chance of Thunderstorms. Rain. Patchy fog. Highs in the lower 50s. Southeast Winds 5 to 10 Mph. Chance of rain near 100 percent.

Tonight 30 Jan St. Charles

Patchy fog in the evening. Cloudy with a slight chance of Thunderstorms. Rain Likely, mainly in the evening. Not as cool. Near steady temperature in the upper 40s. Southeast Winds around 5 Mph, becoming south with Gusts up to 20 Mph after midnight. Chance of rain 70 percent.

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Lake Saint Louis Temperature Statistics

January Temperature

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

  • Lowest 21 January, 2025

    -0.1 °F

  • Average January

    25.7 °F

  • Highest 17 January, 2025

    57.7 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    45.9 °F

  • Average 2020–2025

    56.7 °F

  • Average High 2020–2025

    67.9 °F
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