Mount Carbon Weather Forecast

    • 65
    • 93

    Becoming Sunny

    • 65
    • 90

    Mostly Sunny

    • 72
    • 94

    Mostly Sunny

    • 73
    • 97

    Hot

    • 66
    • 88

    Slight Chance Thunderstorms

    • 65
    • 88

    Slight Chance Rain Showers

Today 6 Sep Jackson

Sunny. Highs in the lower 90s. Northeast Winds 5 to 10 Mph.

Tonight 6 Sep Jackson

Mostly clear. Lows in the mid 60s. Northeast Winds 5 to 10 Mph.

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Mount Carbon Temperature Statistics

September Temperature

Southern Illinois Airport (4.3 miles)

  • Lowest 1 September, 2026

    70.6 °F

  • Average September

    89.2 °F

  • Highest 1 September, 2026

    98.7 °F

Climate (2021–2026)

Southern Illinois Airport (4.3 miles)

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  • Average Low 2021–2026

    48.2 °F

  • Average 2021–2026

    58.8 °F

  • Average High 2021–2026

    69.4 °F
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