Saint Charles Weather Forecast

    • 70
    • 90

    Thunderstorms Likely

    • 60
    • 79

    Rain Showers Likely

    • 63
    • 81

    Sunny

    • 64
    • 84

    Mostly Sunny

    • 66
    • 86

    Mostly Sunny

    • 68
    • 87

    Mostly Sunny

    • 71
    • 89

    Mostly Sunny

Today 21 Jul St. Charles

Mostly cloudy. Scattered Showers and Thunderstorms late in the Evening, then Showers and Thunderstorms likely after midnight. Low around 70. Light wind late in the evening becoming north around 10 Mph after midnight. Chance of rain 60 percent.

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Saint Charles Temperature Statistics

July Temperature

St. Louis Downtown Airport (23.6 miles)

  • Lowest 13 July, 2019

    64 °F
  • Average July

    80.3 °F
  • Highest 10 July, 2019

    95 °F

Climate (2010–Present)

St. Louis Downtown Airport (23.6 miles)

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  • Average Low 2010–Present

    47.9 °F
  • Average 2010–Present

    57.6 °F
  • Average High 2010–Present

    67.6 °F
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