St Charles Weather Forecast

    • 63
    • 85

    Chance Thunderstorms

    • 59
    • 83

    Partly Sunny

    • 57
    • 81

    Partly Sunny

    • 61
    • 83

    Partly Sunny

    • 64
    • 86

    Chance Thunderstorms

    • 66
    • 86

    Chance Thunderstorms

    • 66
    • 87

    Chance Thunderstorms

Today 31 May Madison

Mostly sunny. Near steady temperature in the upper 70s. South Winds 5 to 10 Mph.

Tonight 31 May Madison

Mostly cloudy with a slight chance of Showers and Thunderstorms. Lows in the lower 60s. East Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Charles Temperature Statistics

May Temperature

Osceola Municipal Airport (17.4 miles)

  • Lowest 2 May, 2026

    33.4 °F

  • Average May

    62.5 °F

  • Highest 16 May, 2026

    87.1 °F

Climate (2021–Present)

Osceola Municipal Airport (17.4 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    64 °F
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