Southern Illinois University Edwardsville Weather Forecast

    • 46
    • 73

    Sunny

    • 50
    • 78

    Mostly Sunny

    • 57
    • 81

    Mostly Sunny

    • 62
    • 89

    Mostly Sunny

    • 64
    • 92

    Mostly Sunny

    • 65
    • 92

    Mostly Sunny

    • 65
    • 93

    Mostly Sunny

Today 7 Sep Madison

Sunny. Near steady temperature in the lower 70s. North Winds 5 to 10 Mph.

Tonight 7 Sep Madison

Clear. Lows in the upper 40s. East Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Southern Illinois University Edwardsville Temperature Statistics

September Temperature

St. Louis Regional Airport (6.8 miles)

  • Lowest 5 September, 2025

    54.1 °F

  • Average September

    63.9 °F

  • Highest 3 September, 2025

    84.2 °F

Climate (2020–Present)

St. Louis Regional Airport (6.8 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    53.9 °F

  • Average High 2020–2025

    66 °F
Get WillyWeather+ to remove ads