Scott Air Force Base/Midamerica Airport Weather Forecast

    • 46
    • 73

    Sunny

    • 48
    • 74

    Mostly Sunny

    • 48
    • 75

    Sunny

    • 48
    • 76

    Mostly Sunny

    • 50
    • 77

    Partly Sunny

    • 50
    • 78

    Mostly Cloudy

Today 20 Oct St. Clair

Sunny. Near steady temperature in the lower 70s. Southeast Winds around 5 Mph.

Tonight 20 Oct St. Clair

Mostly clear. Lows in the upper 40s. Southeast Winds around 5 Mph.

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Scott Air Force Base/Midamerica Airport Temperature Statistics

October Temperature

Belleville, Scott AFB/MidAmerica Airport (0.6 miles)

  • Lowest 18 October, 2026

    37.4 °F

  • Average October

    66.2 °F

  • Highest 13 October, 2026

    94.5 °F

Climate (2021–2026)

Belleville, Scott AFB/MidAmerica Airport (0.6 miles)

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  • Average Low 2021–2026

    48 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    68.2 °F
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