Scott Air Force Base Weather Forecast

    • 56
    • 64

    Drizzle

    • 55
    • 66

    Mostly Cloudy

    • 51
    • 72

    Partly Sunny

    • 40
    • 73

    Mostly Cloudy

    • 18
    • 48

    Mostly Sunny

    • 17
    • 28

    Mostly Sunny

Today 24 Dec St. Clair

Mostly cloudy. A slight chance of drizzle in the morning. Areas of dense fog in the Morning, then patchy dense fog in the afternoon. Highs in the mid 60s. Southeast Winds 5 to 10 Mph.

Tonight 24 Dec St. Clair

Cloudy. Widespread dense fog. Near steady temperature in the upper 40s. East Winds around 5 Mph.

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Scott Air Force Base Temperature Statistics

December Temperature

Belleville, Scott AFB/MidAmerica Airport (0 miles)

  • Lowest 14 December, 2025

    7.5 °F

  • Average December

    32.7 °F

  • Highest 20 December, 2025

    59.4 °F

Climate (2020–Present)

Belleville, Scott AFB/MidAmerica Airport (0 miles)

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  • Average Low 2020–2025

    47.5 °F

  • Average 2020–2025

    57.4 °F

  • Average High 2020–2025

    67.5 °F
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