Scott Air Force Base/Midamerica Airport Weather Forecast

    • 52
    • 70

    Rain Showers

    • 43
    • 67

    Partly Sunny

    • 46
    • 68

    Partly Sunny

    • 40
    • 62

    Partly Sunny

    • 41
    • 62

    Mostly Sunny

    • 49
    • 71

    Mostly Sunny

    • 51
    • 74

    Slight Chance Thunderstorms

Today 28 Apr St. Clair

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Cooler. Near steady temperature in the mid 60s. North Winds around 5 Mph. Chance of rain 50 percent.

Tonight 28 Apr St. Clair

Showers with a chance of Thunderstorms. Lows in the lower 50s. North Winds 5 to 10 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

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

    62.8 °F

  • Highest 17 April, 2026

    85.3 °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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