Glen Carbon Weather Forecast

    • 35
    • 53

    Decreasing Clouds

    • 36
    • 52

    Mostly Cloudy

    • 33
    • 51

    Slight Chance Rain

    • 41
    • 64

    Sunny

    • 32
    • 66

    Partly Sunny

    • 32
    • 45

    Chance Rain

Today 24 Feb Madison

Partly sunny late this Morning, then becoming mostly cloudy. Not as cool with Highs in the mid 50s. South Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 24 Feb Madison

Mostly cloudy. Not as cool with Lows in the mid 30s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming west around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Glen Carbon Temperature Statistics

February Temperature

St. Louis Regional Airport (9.9 miles)

  • Lowest 1 February, 2026

    1.2 °F

  • Average February

    35.8 °F

  • Highest 18 February, 2026

    71.6 °F

Climate (2021–Present)

St. Louis Regional Airport (9.9 miles)

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  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    54.2 °F

  • Average High 2021–2026

    66.5 °F
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