Carbondale Weather Forecast

    • 76
    • 92

    Chance Thunderstorms

    • 77
    • 94

    Mostly Sunny

    • 77
    • 95

    Mostly Sunny

    • 76
    • 93

    Slight Chance Thunderstorms

    • 76
    • 93

    Chance Thunderstorms

    • 75
    • 93

    Slight Chance Thunderstorms

Today 22 Jul Jackson

Mostly sunny. Patchy fog this morning. A chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. Southeast Winds around 5 Mph. Chance of rain 40 percent. Highest heat index Readings heat index Readings up to 107 this afternoon.

Tonight 22 Jul Jackson

Partly cloudy in the Evening, then clearing. Humid with Lows in the mid 70s. Southeast Winds around 5 Mph.

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Carbondale Temperature Statistics

July Temperature

Southern Illinois Airport (3.7 miles)

  • Lowest 2 July, 2025

    66.7 °F

  • Average July

    80 °F

  • Highest 11 July, 2025

    92.6 °F

Climate (2020–Present)

Southern Illinois Airport (3.7 miles)

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  • Average Low 2020–2025

    47.8 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    68.6 °F
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