St Charles Weather Forecast

    • 39
    • 64

    Becoming Sunny

    • 44
    • 65

    Partly Sunny

    • 59
    • 70

    Rain Showers Likely

    • 60
    • 79

    Rain Showers Likely

    • 59
    • 76

    Rain Showers Likely

    • 41
    • 75

    Chance Thunderstorms

    • 38
    • 54

    Partly Sunny

Today 25 Mar St. Charles

Mostly sunny. Near steady temperature in the lower 60s. Northwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 25 Mar St. Charles

Mostly cloudy this Evening, then clearing. Lows in the upper 30s. North Winds 5 to 10 Mph, becoming southwest after midnight.

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St Charles Temperature Statistics

March Temperature

St. Louis Lambert International Airport (7.5 miles)

  • Lowest 2 March, 2025

    24.9 °F

  • Average March

    53.3 °F

  • Highest 14 March, 2025

    84.7 °F

Climate (2020–Present)

St. Louis Lambert International Airport (7.5 miles)

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  • Average Low 2020–2025

    50.2 °F

  • Average 2020–2025

    59.5 °F

  • Average High 2020–2025

    68.9 °F
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