Jerseyville Weather Forecast

    • 71
    • 86

    Chance Thunderstorms

    • 74
    • 93

    Partly Sunny

    • 75
    • 97

    Mostly Sunny

    • 71
    • 93

    Partly Sunny

    • 69
    • 91

    Partly Sunny

    • 69
    • 90

    Slight Chance Thunderstorms

Today 25 Jul Jersey

Mostly cloudy. A chance of Showers and Thunderstorms in the morning. Warmer with Highs in the mid 80s. South Winds around 5 Mph. Chance of rain 50 percent.

Tonight 25 Jul Jersey

Cloudy with a chance of Showers with a slight chance of Thunderstorms. Near steady temperature in the upper 60s. South Winds around 5 Mph. Chance of rain 50 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 13 July, 2026

    65.6 °F

  • Average July

    80.9 °F

  • Highest 2 July, 2026

    97.6 °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 °F

  • Average High 2021–2026

    69 °F
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