Jerseyville Weather Forecast

    • 63
    • 83

    Rain Showers

    • 64
    • 84

    Thunderstorms

    • 62
    • 79

    Thunderstorms

    • 57
    • 75

    Partly Sunny

    • 59
    • 78

    Partly Sunny

    • 59
    • 80

    Partly Sunny

    • 60
    • 79

    Chance Rain Showers

Today 19 Jun Jersey

Sunny. Near steady temperature in the lower 80s. Northwest Winds around 5 Mph.

Tonight 19 Jun Jersey

Partly cloudy this Evening, then mostly cloudy with a slight chance of Showers after midnight. Lows in the lower 60s. North Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jerseyville Temperature Statistics

June Temperature

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

  • Lowest 16 June, 2026

    55.7 °F

  • Average June

    75.7 °F

  • Highest 17 June, 2026

    93 °F

Climate (2021–2026)

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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