Marais Temps Clair Conservation Area Weather Forecast

    • 32
    • 53

    Chance Rain

    • 41
    • 47

    Mostly Cloudy

    • 36
    • 63

    Mostly Cloudy

    • 31
    • 54

    Partly Sunny

    • 40
    • 50

    Chance Rain

    • 35
    • 56

    Chance Rain

Today 31 Jan St. Charles

Mostly cloudy. Patchy dense fog in the morning. A slight chance of rain in the afternoon. Highs in the mid 50s. Temperature falling to around 50 in the afternoon. West Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 31 Jan St. Charles

Cloudy with a 40 percent chance of rain. Widespread dense fog. Not as cool. Near steady temperature in the mid 40s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Marais Temps Clair Conservation Area Temperature Statistics

January Temperature

St. Charles, St. Charles County Smartt Airport (1.9 miles)

  • Lowest 21 January, 2025

    -0.1 °F

  • Average January

    24.5 °F

  • Highest 28 January, 2025

    48.9 °F

Climate (2020–Present)

St. Charles, St. Charles County Smartt Airport (1.9 miles)

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  • Average Low 2020–2025

    47.4 °F

  • Average 2020–2025

    57.5 °F

  • Average High 2020–2025

    68.1 °F
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