Jerseyville Weather Forecast

    • 72
    • 88

    Thunderstorms Likely

    • 69
    • 86

    Slight Chance Thunderstorms

    • 70
    • 88

    Chance Thunderstorms

    • 70
    • 85

    Chance Thunderstorms

    • 71
    • 87

    Slight Chance Thunderstorms

    • 71
    • 90

    Chance Thunderstorms

    • 68
    • 87

    Chance Thunderstorms

Today 6 Jul Jersey

Showers and Thunderstorms likely. Near steady temperature in the mid 80s. West Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 6 Jul Jersey

Mostly cloudy. Showers and Thunderstorms likely in the evening. Lows in the lower 70s. West Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jerseyville Temperature Statistics

July Temperature

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

  • Lowest 2 July, 2025

    64.9 °F

  • Average July

    79.4 °F

  • Highest 4 July, 2025

    93 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    57.6 °F

  • Average High 2020–2025

    68.3 °F
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