Collinsville Weather Forecast

    • 69
    • 85

    Increasing Clouds

    • 67
    • 88

    Partly Sunny

    • 65
    • 82

    Mostly Cloudy

    • 63
    • 77

    Chance Rain Showers

    • 62
    • 81

    Mostly Sunny

    • 63
    • 83

    Mostly Sunny

    • 64
    • 84

    Partly Sunny

Today 13 Aug Madison

Sunny. Near steady temperature in the mid 80s. South Winds 5 to 10 Mph.

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Collinsville Temperature Statistics

August Temperature

Belleville, Scott AFB/MidAmerica Airport (10.6 miles)

  • Lowest 11 August, 2022

    63.1 °F
  • Average August

    79.1 °F
  • Highest 3 August, 2022

    95 °F

Climate (2010–Present)

Belleville, Scott AFB/MidAmerica Airport (10.6 miles)

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  • Average Low 2010–Present

    47.3 °F
  • Average 2010–Present

    56.8 °F
  • Average High 2010–Present

    66.8 °F
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