Saint Charles Weather Forecast

    • 31
    • 49

    Increasing Clouds

    • 32
    • 46

    Mostly Cloudy

    • 29
    • 47

    Partly Sunny

    • 29
    • 46

    Mostly Sunny

    • 28
    • 45

    Partly Sunny

    • 29
    • 45

    Mostly Sunny

Today 2 Dec St. Charles

Mostly sunny. High in the mid 40s to lower 50s. Southeast wind around 10 Mph.

Tonight 2 Dec St. Charles

Mostly clear in the Evening, then mostly cloudy with a 20 percent chance of snow after midnight. Low around 30. Light wind.

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Saint Charles Temperature Statistics

December Temperature

St. Louis Lambert International Airport (6.2 miles)

  • Lowest

  • Average December

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Climate (2010–Present)

St. Louis Lambert International Airport (6.2 miles)

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  • Average Low 2010–Present

    50.4 °F
  • Average 2010–Present

    59 °F
  • Average High 2010–Present

    68 °F
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