Edwardsville Weather Forecast

    • 59
    • 72

    Mostly Cloudy

    • 55
    • 77

    Decreasing Clouds

    • 56
    • 78

    Mostly Sunny

    • 66
    • 83

    Mostly Cloudy

    • 68
    • 81

    Rain Showers Likely

    • 64
    • 78

    Rain Showers Likely

    • 60
    • 74

    Chance Rain Showers

Today 26 Sep Madison

Mostly sunny with a 40 percent chance of Showers. Highs in the mid 70s.

Tonight 26 Sep Madison

Mostly cloudy. A slight chance of Showers after midnight. Lows around 60. East Winds around 5 Mph this Evening, becoming light and variable. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Edwardsville Temperature Statistics

September Temperature

St. Louis Regional Airport (6.8 miles)

  • Lowest 23 September, 2026

    55.4 °F

  • Average September

    75.4 °F

  • Highest 5 September, 2026

    100.4 °F

Climate (2021–2026)

St. Louis Regional Airport (6.8 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    66.7 °F
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