Belleville Weather Forecast

    • 15
    • 26

    Partly Sunny

    • 24
    • 38

    Mostly Sunny

    • 36
    • 49

    Partly Sunny

    • 40
    • 58

    Partly Sunny

    • 38
    • 59

    Partly Sunny

    • 38
    • 56

    Chance Rain

Today 21 Feb St. Clair

Sunny. Not as cool with Highs in the upper 20s. Southwest Winds around 5 Mph.

Tonight 21 Feb St. Clair

Mostly clear in the Evening, then becoming mostly cloudy. Not as cool with Lows around 16. South Winds around 5 Mph.

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Belleville Temperature Statistics

February Temperature

Belleville, Scott AFB/MidAmerica Airport (7.5 miles)

  • Lowest 18 February, 2025

    7 °F

  • Average February

    32.6 °F

  • Highest 3 February, 2025

    72.7 °F

Climate (2020–Present)

Belleville, Scott AFB/MidAmerica Airport (7.5 miles)

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  • Average Low 2020–2025

    47.2 °F

  • Average 2020–2025

    57 °F

  • Average High 2020–2025

    67.1 °F
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