Vergennes Weather Forecast

    • 31
    • 40

    Mostly Sunny

    • 30
    • 53

    Partly Sunny

    • 28
    • 44

    Partly Sunny

    • 43
    • 48

    Mostly Cloudy

    • 51
    • 61

    Mostly Cloudy

    • 57
    • 65

    Mostly Cloudy

Today 19 Dec Jackson

Sunny, cooler with Highs in the lower 40s. West Winds 10 to 15 Mph.

Tonight 19 Dec Jackson

Mostly clear. Near steady temperature in the mid 30s. South Winds 10 to 15 Mph.

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Vergennes Temperature Statistics

December Temperature

Southern Illinois Airport (9.3 miles)

  • Lowest 14 December, 2025

    8.1 °F

  • Average December

    31 °F

  • Highest 6 December, 2025

    48.9 °F

Climate (2020–Present)

Southern Illinois Airport (9.3 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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