Lake St Louis Weather Forecast

    • 6
    • 17

    Becoming Sunny

    • 1
    • 30

    Mostly Sunny

    • 5
    • 31

    Partly Sunny

    • 2
    • 21

    Mostly Cloudy

    • -2
    • 18

    Partly Sunny

    • 8
    • 24

    Partly Sunny

Today 26 Jan St. Charles

Sunny. Highs around 16. West Winds 5 to 10 Mph. Wind chill Values as low as 22 below this morning.

Tonight 26 Jan St. Charles

Mostly clear. Not as cool with Lows around 5 above. Temperature rising to around 13 after midnight. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Wind chill Values as low as 9 below.

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Lake St Louis Temperature Statistics

January Temperature

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

  • Lowest 24 January, 2026

    1.9 °F

  • Average January

    33.3 °F

  • Highest 6 January, 2026

    69.7 °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

    57.1 °F

  • Average High 2021–2026

    68.3 °F
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