St. Charles Airport Weather Forecast

    • 56
    • 76

    Chance Thunderstorms

    • 50
    • 70

    Rain Showers Likely

    • 47
    • 63

    Rain Showers Likely

    • 47
    • 62

    Slight Chance Rain Showers

    • 48
    • 66

    Mostly Sunny

    • 57
    • 76

    Chance Rain Showers

    • 55
    • 76

    Slight Chance Rain Showers

Today 1 May St. Charles

Partly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the lower 70s. West Winds 10 to 15 Mph. Chance of rain 50 percent.

Tonight 1 May St. Charles

Partly cloudy with isolated Showers and Thunderstorms this Evening, then mostly cloudy after midnight. Lows in the mid 50s. West Winds 5 to 10 Mph. Chance of rain 20 percent.

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St. Charles Airport Temperature Statistics

May Temperature

St. Charles, St. Charles County Smartt Airport (6.2 miles)

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Climate (2020–Present)

St. Charles, St. Charles County Smartt Airport (6.2 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    57.6 °F

  • Average High 2020–2025

    68.3 °F
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