Jerseyville Weather Forecast

    • 52
    • 68

    Rain Showers

    • 54
    • 79

    Chance Rain Showers

    • 42
    • 65

    Partly Sunny

    • 47
    • 69

    Mostly Sunny

    • 55
    • 76

    Slight Chance Thunderstorms

    • 49
    • 73

    Mostly Sunny

    • 57
    • 75

    Slight Chance Thunderstorms

Today 8 May Jersey

Showers likely with a chance of Thunderstorms. Near steady temperature in the upper 60s. West Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

Tonight 8 May Jersey

Mostly cloudy. Showers with a chance of Thunderstorms this evening. Lows in the lower 50s. Southwest Winds 5 to 10 Mph. Chance of rain 80 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

    58 °F

  • Highest 4 May, 2026

    81.6 °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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