Jerseyville Weather Forecast

    • 25
    • 31

    Becoming Sunny

    • 15
    • 47

    Mostly Sunny

    • 14
    • 24

    Mostly Sunny

    • 25
    • 34

    Mostly Sunny

    • 33
    • 48

    Mostly Sunny

    • 42
    • 52

    Chance Rain

Today 3 Dec Jersey

Mostly cloudy late this Morning, then clearing. Highs in the lower 30s. Southwest Winds 5 to 10 Mph.

Tonight 3 Dec Jersey

Mostly clear. Not as cool with Lows in the mid 20s. Temperature rising to around 30 after midnight. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Jerseyville Temperature Statistics

December Temperature

St. Charles, St. Charles County Smartt Airport (13.7 miles)

  • Lowest 1 December, 2024

    19 °F

  • Average December

    26.8 °F

  • Highest 1 December, 2024

    30 °F

Climate (2019–Present)

St. Charles, St. Charles County Smartt Airport (13.7 miles)

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  • Average Low 2019–2024

    48 °F

  • Average 2019–2024

    58.1 °F

  • Average High 2019–2024

    68.7 °F
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