Jones-Confluence Point State Park Weather Forecast

    • 43
    • 53

    Decreasing Clouds

    • 45
    • 63

    Partly Sunny

    • 57
    • 69

    Mostly Cloudy

    • 54
    • 75

    Mostly Cloudy

    • 45
    • 66

    Partly Sunny

    • 31
    • 62

    Mostly Cloudy

Today 22 Dec St. Charles

Mostly sunny. Not as cool with Highs in the mid 50s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 22 Dec St. Charles

Partly cloudy. Near steady temperature in the upper 20s. Southeast Winds around 5 Mph.

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Jones-Confluence Point State Park Temperature Statistics

December Temperature

St. Louis Regional Airport (6.2 miles)

  • Lowest 5 December, 2025

    4.5 °F

  • Average December

    29.3 °F

  • Highest 17 December, 2025

    55.4 °F

Climate (2020–Present)

St. Louis Regional Airport (6.2 miles)

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  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    54 °F

  • Average High 2020–2025

    66.1 °F
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