Scott Air Force Base/Midamerica Airport Weather Forecast

    • 37
    • 69

    Rain Likely

    • 44
    • 68

    Mostly Sunny

    • 59
    • 78

    Mostly Sunny

    • 56
    • 80

    Rain

    • 33
    • 65

    Chance Rain

    • 39
    • 55

    Mostly Cloudy

Today 7 Mar St. Clair

Rain with a slight chance of Thunderstorms this morning. Cooler with Highs in the upper 60s. Temperature falling into the mid 50s this afternoon. Southwest Winds 10 to 15 Mph, becoming northwest 15 to 20 Mph this afternoon. Chance of rain near 100 percent.

Tonight 7 Mar St. Clair

Mostly cloudy in the Evening, then clearing. Much cooler with Lows in the upper 30s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Scott Air Force Base/Midamerica Airport Temperature Statistics

March Temperature

Belleville, Scott AFB/MidAmerica Airport (0.6 miles)

  • Lowest 1 March, 2026

    30 °F

  • Average March

    46.2 °F

  • Highest 5 March, 2026

    60.1 °F

Climate (2021–Present)

Belleville, Scott AFB/MidAmerica Airport (0.6 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    57.6 °F

  • Average High 2021–2026

    67.8 °F
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