Mount Carbon Weather Forecast

    • 34
    • 48

    Increasing Clouds

    • 25
    • 45

    Mostly Cloudy

    • 24
    • 37

    Partly Sunny

    • 39
    • 47

    Mostly Cloudy

    • 28
    • 50

    Slight Chance Rain Showers

    • 24
    • 41

    Mostly Cloudy

Today 6 Dec Jackson

Mostly sunny. Highs in the upper 40s. South Winds around 5 Mph.

Tonight 6 Dec Jackson

Mostly cloudy. A slight chance of very light drizzle after midnight. Lows in the mid 30s. South Winds around 5 Mph.

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Mount Carbon Temperature Statistics

December Temperature

Southern Illinois Airport (4.3 miles)

  • Lowest 4 December, 2025

    19.9 °F

  • Average December

    27.7 °F

  • Highest 3 December, 2025

    35.1 °F

Climate (2020–Present)

Southern Illinois Airport (4.3 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    58.2 °F

  • Average High 2020–2025

    68.8 °F
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