Jerseyville Weather Forecast

    • 48
    • 75

    Partly Sunny

    • 51
    • 77

    Partly Sunny

    • 51
    • 77

    Mostly Cloudy

    • 51
    • 75

    Mostly Cloudy

    • 52
    • 78

    Mostly Sunny

    • 50
    • 77

    Partly Sunny

Today 24 Oct Jersey

Mostly sunny. Near steady temperature in the mid 70s. Southeast Winds around 5 Mph.

Tonight 24 Oct Jersey

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 40s. Southeast Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Jerseyville Temperature Statistics

October Temperature

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

  • Lowest 18 October, 2026

    37.7 °F

  • Average October

    64.5 °F

  • Highest 12 October, 2026

    93.7 °F

Climate (2021–2026)

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

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    69.1 °F
Get WillyWeather+ to remove ads