Jerseyville Weather Forecast

    • 53
    • 74

    Decreasing Clouds

    • 56
    • 76

    Mostly Sunny

    • 58
    • 79

    Chance Thunderstorms

    • 67
    • 85

    Rain Showers

    • 59
    • 79

    Chance Rain Showers

    • 61
    • 82

    Mostly Sunny

Today 14 Jun Jersey

Mostly sunny. A chance of Showers and Thunderstorms in the morning. Highs in the mid 70s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 14 Jun Jersey

Partly cloudy. Cooler with Lows in the lower 50s. Northwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Jerseyville Temperature Statistics

June Temperature

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

  • Lowest 3 June, 2026

    56.6 °F

  • Average June

    77.7 °F

  • Highest 11 June, 2026

    91.9 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    69 °F
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