Carbondale Weather Forecast

    • 46
    • 56

    Rain Showers

    • 25
    • 56

    Rain Showers

    • 32
    • 40

    Mostly Sunny

    • 33
    • 54

    Mostly Cloudy

    • 32
    • 48

    Mostly Cloudy

    • 40
    • 47

    Mostly Cloudy

Today 17 Dec Jackson

Sunny. Highs in the mid 50s. South Winds around 5 Mph.

Tonight 17 Dec Jackson

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the mid 40s. South Winds 5 to 10 Mph with Gusts up to 25 Mph, increasing to 15 to 20 Mph with Gusts up to 35 Mph after midnight. Chance of rain 40 percent.

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Carbondale Temperature Statistics

December Temperature

Southern Illinois Airport (3.7 miles)

  • Lowest 14 December, 2025

    8.1 °F

  • Average December

    30.3 °F

  • Highest 6 December, 2025

    48.9 °F

Climate (2020–Present)

Southern Illinois Airport (3.7 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    58.2 °F

  • Average High 2020–2025

    68.7 °F
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