Carterville Weather Forecast

    • 69
    • 94

    Mostly Cloudy

    • 68
    • 94

    Partly Sunny

    • 68
    • 93

    Mostly Sunny

    • 68
    • 92

    Partly Sunny

    • 67
    • 90

    Slight Chance Thunderstorms

    • 67
    • 89

    Partly Sunny

Today 14 Sep Cass

Mostly cloudy with a 20 percent chance of Showers. Hot. Near steady temperature in the lower 90s. Southeast Winds around 5 Mph.

Tonight 14 Sep Cass

Partly cloudy in the Evening, then becoming mostly cloudy. Lows around 70. Light and variable Winds.

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Carterville Temperature Statistics

September Temperature

Mount Pleasant, Mount Pleasant Regional Airport (28 miles)

  • Lowest 9 September, 2025

    52.7 °F

  • Average September

    75 °F

  • Highest 4 September, 2025

    93.4 °F

Climate (2020–Present)

Mount Pleasant, Mount Pleasant Regional Airport (28 miles)

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  • Average Low 2020–2025

    54.1 °F

  • Average 2020–2025

    64.6 °F

  • Average High 2020–2025

    75.9 °F
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