Scott Air Force Base/Midamerica Airport Weather Forecast

    • 61
    • 76

    Rain Showers

    • 58
    • 82

    Chance Thunderstorms

    • 53
    • 85

    Rain Showers Likely

    • 39
    • 64

    Chance Rain Showers

    • 42
    • 65

    Sunny

    • 50
    • 73

    Mostly Sunny

    • 54
    • 78

    Partly Sunny

Today 15 Apr St. Clair

Showers likely with a chance of Thunderstorms. Highs in the lower 80s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 60 percent.

Tonight 15 Apr St. Clair

Showers with Thunderstorms likely. Lows in the lower 60s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 80 percent.

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Scott Air Force Base/Midamerica Airport Temperature Statistics

April Temperature

Belleville, Scott AFB/MidAmerica Airport (0.6 miles)

  • Lowest 6 April, 2026

    38.8 °F

  • Average April

    62.2 °F

  • Highest 13 April, 2026

    82.6 °F

Climate (2021–Present)

Belleville, Scott AFB/MidAmerica Airport (0.6 miles)

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  • Average Low 2021–2026

    47.7 °F

  • Average 2021–2026

    57.7 °F

  • Average High 2021–2026

    68 °F
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