Collinsville Weather Forecast

    • 5
    • 18

    Chance Flurries

    • 2
    • 18

    Partly Sunny

    • 19
    • 29

    Mostly Cloudy

    • 19
    • 33

    Mostly Cloudy

    • 24
    • 35

    Mostly Cloudy

    • 21
    • 34

    Mostly Cloudy

Today 30 Jan Madison

Partly sunny. A chance of Flurries in the afternoon. Highs around 18. North Winds 5 to 10 Mph. Wind chill Values as low as 8 below in the morning.

Tonight 30 Jan Madison

Mostly cloudy with a chance of Flurries in the Evening, then partly cloudy after midnight. Cold with Lows around 5 above. North Winds around 10 Mph with Gusts up to 20 Mph. Wind chill Values as low as 9 below after midnight.

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Collinsville Temperature Statistics

January Temperature

Belleville, Scott AFB/MidAmerica Airport (10.6 miles)

  • Lowest 26 January, 2026

    -1.8 °F

  • Average January

    32.1 °F

  • Highest 6 January, 2026

    69.1 °F

Climate (2021–Present)

Belleville, Scott AFB/MidAmerica Airport (10.6 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    57.4 °F

  • Average High 2021–2026

    67.6 °F
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