Scott Air Force Base/Midamerica Airport Weather Forecast

    • 72
    • 96

    Increasing Clouds

    • 66
    • 83

    Rain Showers

    • 54
    • 83

    Rain Showers

    • 40
    • 65

    Mostly Sunny

    • 38
    • 63

    Mostly Sunny

    • 46
    • 71

    Partly Sunny

Today 13 Oct St. Clair

Sunny, hot with Highs in the mid 90s. Southwest Winds 5 to 10 Mph. Heat index Values up to 102 in the afternoon.

Tonight 13 Oct St. Clair

Mostly clear in the Evening, then partly cloudy with a chance of Showers and Thunderstorms after midnight. Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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Scott Air Force Base/Midamerica Airport Temperature Statistics

October Temperature

Belleville, Scott AFB/MidAmerica Airport (0.6 miles)

  • Lowest 6 October, 2026

    45.7 °F

  • Average October

    66.7 °F

  • Highest 1 October, 2026

    92.3 °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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