St. Charles Airport Weather Forecast

    • 53
    • 72

    Becoming Sunny

    • 51
    • 76

    Mostly Sunny

    • 60
    • 83

    Chance Rain Showers

    • 59
    • 73

    Rain Showers

    • 56
    • 73

    Chance Rain Showers

    • 60
    • 80

    Chance Rain Showers

    • 59
    • 77

    Chance Thunderstorms

Today 10 May St. Charles

Mostly sunny. Near steady temperature around 70. Northwest Winds 5 to 10 Mph.

Tonight 10 May St. Charles

Mostly clear. Lows in the lower 50s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St. Charles Airport Temperature Statistics

May Temperature

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

  • Lowest 8 May, 2024

    54 °F

  • Average May

    69.5 °F

  • Highest 2 May, 2024

    86.6 °F

Climate (2019–Present)

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

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  • Average Low 2019–2024

    46.7 °F

  • Average 2019–2024

    56.7 °F

  • Average High 2019–2024

    67.3 °F
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