Lake St Louis Weather Forecast

    • 51
    • 60

    Rain Showers

    • 57
    • 68

    Chance Thunderstorms

    • 52
    • 79

    Rain Showers

    • 40
    • 64

    Partly Sunny

    • 48
    • 67

    Mostly Sunny

    • 60
    • 78

    Rain Showers Likely

Today 4 Mar St. Charles

Patchy fog this morning. Cloudy with a chance of Thunderstorms. A chance of Showers this Morning, then Showers this afternoon. Highs in the lower 60s. East Winds around 5 Mph, becoming south around 5 Mph this afternoon. Chance of rain 90 percent.

Tonight 4 Mar St. Charles

A chance of Thunderstorms. Showers. Patchy fog. Near steady temperature in the mid 50s. South Winds around 5 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake St Louis Temperature Statistics

March Temperature

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

  • Lowest 1 March, 2026

    27 °F

  • Average March

    36.9 °F

  • Highest 1 March, 2026

    45 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    68.5 °F
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