Scott Air Force Base Weather Forecast

    • 73
    • 94

    Rain Showers Likely

    • 66
    • 83

    Rain Showers Likely

    • 61
    • 80

    Partly Sunny

    • 60
    • 80

    Mostly Sunny

    • 64
    • 83

    Partly Sunny

    • 69
    • 87

    Slight Chance Thunderstorms

Today 30 Jul St. Clair

Mostly sunny. Patchy fog early in the morning. Slight chance of Thunderstorms early in the afternoon. Chance of Thunderstorms late in the afternoon. Highs in the mid 90s. Southeast Winds up to 5 Mph. Chance of Thunderstorms 50 percent.

Tonight 30 Jul St. Clair

Mostly cloudy. Chance of Thunderstorms in the Evening, then Showers likely and chance of Thunderstorms after midnight. Lows in the lower 70s. Northeast Winds up to 5 Mph. Chance of precipitation 70 percent.

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Scott Air Force Base Temperature Statistics

July Temperature

Belleville, Scott AFB/MidAmerica Airport (0 miles)

  • Lowest 2 July, 2025

    65.8 °F

  • Average July

    81.2 °F

  • Highest 23 July, 2025

    96.3 °F

Climate (2020–Present)

Belleville, Scott AFB/MidAmerica Airport (0 miles)

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  • Average Low 2020–2025

    47.4 °F

  • Average 2020–2025

    57.2 °F

  • Average High 2020–2025

    67.3 °F
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