St Charles Weather Forecast

    • 60
    • 84

    Increasing Clouds

    • 63
    • 84

    Chance Rain Showers

    • 61
    • 75

    Chance Thunderstorms

    • 58
    • 72

    Mostly Cloudy

    • 57
    • 76

    Chance Rain Showers

    • 47
    • 72

    Slight Chance Rain Showers

Today 29 Aug Madison

Mostly sunny. Highs in the lower 80s. South Winds around 5 Mph.

Tonight 29 Aug Madison

Mostly cloudy in the Evening, then becoming partly cloudy. Lows around 60. Southeast Winds around 5 Mph.

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St Charles Temperature Statistics

August Temperature

Osceola Municipal Airport (17.4 miles)

  • Lowest 24 August, 2025

    52.7 °F

  • Average August

    73.7 °F

  • Highest 17 August, 2025

    92.7 °F

Climate (2020–Present)

Osceola Municipal Airport (17.4 miles)

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  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    52.6 °F

  • Average High 2020–2025

    63.2 °F
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