Jerseyville Weather Forecast

    • 60
    • 67

    Chance Rain Showers

    • 62
    • 79

    Rain Showers Likely

    • 60
    • 78

    Chance Thunderstorms

    • 61
    • 82

    Slight Chance Thunderstorms

    • 63
    • 81

    Chance Thunderstorms

    • 64
    • 82

    Rain Showers Likely

    • 63
    • 81

    Rain Showers Likely

Today 22 May Jersey

Cloudy with scattered Showers. Near steady temperature in the upper 60s. Northeast Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 22 May Jersey

Cloudy. A chance of Showers this evening. Lows around 60. Northeast Winds around 5 Mph, becoming northwest after midnight. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jerseyville Temperature Statistics

May Temperature

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

  • Lowest 3 May, 2026

    40.6 °F

  • Average May

    63.3 °F

  • Highest 17 May, 2026

    87.1 °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

    58 °F

  • Average High 2021–2026

    68.9 °F
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