St. Charles Airport Weather Forecast

    • 22
    • 46

    Becoming Sunny

    • 27
    • 37

    Partly Sunny

    • 31
    • 55

    Mostly Sunny

    • 41
    • 61

    Mostly Sunny

    • 37
    • 65

    Chance Rain

    • 30
    • 50

    Slight Chance Rain

Today 6 Feb St. Charles

Mostly sunny and breezy. Near steady temperature in the mid 40s. Northwest Winds 15 to 25 Mph with Gusts up to 35 Mph.

Tonight 6 Feb St. Charles

Partly cloudy in the Evening, then becoming mostly clear. Lows in the lower 20s. North Winds 5 to 10 Mph. Gusts up to 30 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St. Charles Airport Temperature Statistics

February Temperature

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

  • Lowest 1 February, 2026

    3 °F

  • Average February

    27.3 °F

  • Highest 2 February, 2026

    37.9 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    57.7 °F

  • Average High 2021–2026

    68.5 °F
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