Jerseyville Weather Forecast

    • 39
    • 64

    Chance Rain Showers

    • 41
    • 61

    Partly Sunny

    • 39
    • 59

    Mostly Sunny

    • 55
    • 72

    Rain Showers Likely

    • 54
    • 76

    Chance Thunderstorms

    • 50
    • 73

    Rain Showers Likely

Today 30 Apr Jersey

Partly sunny with a 20 percent chance of Showers. Near steady temperature in the lower 60s. Southwest Winds 5 to 10 Mph.

Tonight 30 Apr Jersey

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the upper 30s. Northwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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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 19 April, 2026

    37.9 °F

  • Average April

    62.5 °F

  • Highest 14 April, 2026

    91.7 °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

    68.9 °F
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