Collinsville Weather Forecast

    • 32
    • 54

    Decreasing Clouds

    • 38
    • 59

    Partly Sunny

    • 43
    • 51

    Rain Likely

    • 37
    • 56

    Mostly Sunny

    • 45
    • 60

    Mostly Cloudy

    • 52
    • 64

    Mostly Cloudy

Today 12 Feb Madison

Mostly cloudy this Morning, then becoming mostly sunny. Highs in the mid 50s. Southeast Winds 5 to 10 Mph.

Tonight 12 Feb Madison

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the lower 30s. Southeast Winds 5 to 10 Mph.

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Collinsville Temperature Statistics

February Temperature

Belleville, Scott AFB/MidAmerica Airport (10.6 miles)

  • Lowest 1 February, 2026

    4.5 °F

  • Average February

    29.8 °F

  • Highest 9 February, 2026

    53.8 °F

Climate (2021–Present)

Belleville, Scott AFB/MidAmerica Airport (10.6 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    57.4 °F

  • Average High 2021–2026

    67.6 °F
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