Collinsville Weather Forecast

    • 14
    • 29

    Mostly Cloudy

    • 5
    • 17

    Partly Sunny

    • 7
    • 21

    Partly Sunny

    • 8
    • 16

    Partly Sunny

    • 24
    • 34

    Mostly Cloudy

    • 21
    • 37

    Mostly Cloudy

Today 18 Jan Madison

Mostly cloudy. Much cooler with Highs in the upper 20s. North Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 18 Jan Madison

Mostly cloudy. Much cooler with Lows around 13. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Wind chill Values as low as 1 below.

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Collinsville Temperature Statistics

January Temperature

Belleville, Scott AFB/MidAmerica Airport (10.6 miles)

  • Lowest 15 January, 2025

    2.7 °F

  • Average January

    26.1 °F

  • Highest 2 January, 2025

    44.1 °F

Climate (2020–Present)

Belleville, Scott AFB/MidAmerica Airport (10.6 miles)

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  • Average Low 2020–2025

    47.2 °F

  • Average 2020–2025

    57 °F

  • Average High 2020–2025

    67 °F
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