Jerseyville Weather Forecast

    • 36
    • 60

    Decreasing Clouds

    • 39
    • 57

    Mostly Sunny

    • 34
    • 58

    Partly Sunny

    • 39
    • 50

    Mostly Cloudy

    • 53
    • 71

    Partly Sunny

    • 53
    • 73

    Slight Chance Thunderstorms

    • 56
    • 75

    Chance Rain Showers

Today 4 Apr Jersey

Mostly cloudy and much cooler. Near steady temperature in the lower 50s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 4 Apr Jersey

Mostly cloudy this Evening, then clearing. Much cooler with Lows in the mid 30s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jerseyville Temperature Statistics

April Temperature

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

  • Lowest 1 April, 2026

    48 °F

  • Average April

    60.4 °F

  • Highest 2 April, 2026

    75.9 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    68.8 °F
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