Scott Air Force Base/Midamerica Airport Weather Forecast

    • 22
    • 41

    Becoming Sunny

    • 16
    • 34

    Mostly Sunny

    • 19
    • 34

    Mostly Sunny

    • 38
    • 52

    Mostly Cloudy

    • 38
    • 62

    Mostly Cloudy

    • 31
    • 54

    Mostly Sunny

Today 21 Feb St. Clair

Mostly cloudy with a chance of Flurries this Morning, then partly sunny this afternoon. Highs in the lower 40s. Northwest Winds 10 to 15 Mph.

Tonight 21 Feb St. Clair

Mostly clear. Lows in the lower 20s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Scott Air Force Base/Midamerica Airport Temperature Statistics

February Temperature

Belleville, Scott AFB/MidAmerica Airport (0.6 miles)

  • Lowest 1 February, 2026

    4.5 °F

  • Average February

    38.8 °F

  • Highest 18 February, 2026

    74.8 °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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