Lake Saint Louis Weather Forecast

    • 45
    • 56

    Breezy

    • 36
    • 60

    Increasing Clouds

    • 54
    • 66

    Mostly Cloudy

    • 20
    • 68

    Rain/Snow

    • 12
    • 29

    Blustery

    • 27
    • 36

    Slight Chance Rain/Snow

    • 39
    • 58

    Partly Sunny

Today 12 Mar St. Charles

Sunny. Highs in the mid 50s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 12 Mar St. Charles

Partly cloudy. Not as cool with Lows in the mid 40s. South Winds 15 to 20 Mph with Gusts up to 35 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Saint Louis Temperature Statistics

March Temperature

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

  • Lowest 1 March, 2026

    27 °F

  • Average March

    54.2 °F

  • Highest 10 March, 2026

    84.9 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    68.6 °F
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