Jerseyville Weather Forecast

    • 50
    • 81

    Decreasing Clouds

    • 64
    • 87

    Mostly Sunny

    • 70
    • 94

    Mostly Sunny

    • 61
    • 91

    Chance Rain Showers

    • 57
    • 79

    Rain Showers Likely

    • 51
    • 77

    Chance Rain Showers

Today 10 Oct Jersey

Mostly sunny. Highs in the lower 80s. Southeast Winds 5 to 10 Mph.

Tonight 10 Oct Jersey

Mostly cloudy in the Evening, then clearing. Lows around 50. Southeast Winds 5 to 10 Mph.

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Jerseyville Temperature Statistics

October Temperature

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

  • Lowest 4 October, 2026

    44.7 °F

  • Average October

    67.1 °F

  • Highest 1 October, 2026

    91.7 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    69 °F
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