Carterville Weather Forecast

    • 70
    • 90

    Chance Thunderstorms

    • 67
    • 87

    Mostly Sunny

    • 69
    • 89

    Mostly Sunny

    • 71
    • 90

    Mostly Sunny

    • 72
    • 90

    Mostly Sunny

    • 74
    • 93

    Slight Chance Thunderstorms

Today 30 Jun Williamson

Patchy fog in the morning. Partly sunny with a chance of Showers and Thunderstorms. Highs around 90. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 30 Jun Williamson

Showers likely with a chance of Thunderstorms in the Evening, then mostly cloudy after midnight. Lows in the lower 70s. West Winds 5 to 10 Mph. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Carterville Temperature Statistics

June Temperature

Marion - Williamson County Regional Airport (3.1 miles)

  • Lowest 10 June, 2025

    57.9 °F

  • Average June

    74.7 °F

  • Highest 21 June, 2025

    93.2 °F

Climate (2020–Present)

Marion - Williamson County Regional Airport (3.1 miles)

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  • Average Low 2020–2025

    47.2 °F

  • Average 2020–2025

    55.5 °F

  • Average High 2020–2025

    67.4 °F
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