Southern Illinois University Edwardsville Weather Forecast

    • 73
    • 88

    Chance Thunderstorms

    • 76
    • 92

    Chance Thunderstorms

    • 76
    • 93

    Chance Thunderstorms

    • 77
    • 94

    Slight Chance Thunderstorms

    • 77
    • 96

    Slight Chance Thunderstorms

    • 78
    • 97

    Hot

    • 76
    • 97

    Hot

Today 18 Jul Madison

Mostly cloudy with scattered Showers and Thunderstorms. Near steady temperature in the mid 80s. Southeast Winds around 5 Mph. Chance of rain 40 percent.

Tonight 18 Jul Madison

Mostly cloudy with scattered Showers and Thunderstorms. Lows in the mid 70s. Southeast Winds around 5 Mph. Chance of rain 30 percent.

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Southern Illinois University Edwardsville Temperature Statistics

July Temperature

St. Louis Regional Airport (6.8 miles)

  • Lowest 2 July, 2025

    63.9 °F

  • Average July

    75.7 °F

  • Highest 4 July, 2025

    91.4 °F

Climate (2020–Present)

St. Louis Regional Airport (6.8 miles)

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  • Average Low 2020–2025

    46 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    65.9 °F
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