Jerseyville Weather Forecast

    • 15
    • 29

    Decreasing Clouds

    • 29
    • 39

    Mostly Cloudy

    • 23
    • 47

    Partly Sunny

    • 28
    • 39

    Partly Sunny

    • 27
    • 49

    Partly Sunny

    • 36
    • 49

    Mostly Cloudy

Today 4 Feb Jersey

Partly sunny. Highs in the upper 20s. North Winds 5 to 10 Mph.

Tonight 4 Feb Jersey

Mostly cloudy and cooler. Near steady temperature around 19. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jerseyville Temperature Statistics

February Temperature

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

  • Lowest 1 February, 2026

    3 °F

  • Average February

    26.8 °F

  • Highest 2 February, 2026

    37.9 °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

    57.7 °F

  • Average High 2021–2026

    68.5 °F
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