Carterville Weather Forecast

    • 56
    • 77

    Increasing Clouds

    • 58
    • 80

    Rain Showers

    • 40
    • 71

    Chance Rain Showers

    • 34
    • 53

    Mostly Sunny

    • 51
    • 66

    Mostly Sunny

    • 56
    • 72

    Mostly Cloudy

Today 13 Mar Williamson

Partly sunny with a slight chance of Showers and Thunderstorms this Morning, then sunny this afternoon. Highs in the mid 70s. South Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 13 Mar Williamson

Clear in the Evening, then becoming partly cloudy. Lows in the mid 50s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Carterville Temperature Statistics

March Temperature

Marion - Williamson County Regional Airport (3.1 miles)

  • Lowest 2 March, 2025

    19.4 °F

  • Average March

    43.3 °F

  • Highest 11 March, 2025

    77 °F

Climate (2020–Present)

Marion - Williamson County Regional Airport (3.1 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    67.2 °F
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