Scott Air Force Base Weather Forecast

    • 77
    • 97

    Hot

    • 77
    • 97

    Chance Thunderstorms

    • 75
    • 95

    Chance Thunderstorms

    • 75
    • 92

    Slight Chance Thunderstorms

    • 77
    • 97

    Hot

    • 73
    • 97

    Chance Thunderstorms

Today 11 Aug St. Clair

Mostly sunny. Hot with Highs in the upper 90s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Heat index Values up to 109.

Tonight 11 Aug St. Clair

Partly cloudy in the Evening, then clearing. Lows in the upper 70s. Southwest Winds 5 to 10 Mph. Heat index Values up to 107 early in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Scott Air Force Base Temperature Statistics

August Temperature

Belleville, Scott AFB/MidAmerica Airport (0 miles)

  • Lowest 3 August, 2026

    64.8 °F

  • Average August

    77 °F

  • Highest 9 August, 2026

    92.1 °F

Climate (2021–2026)

Belleville, Scott AFB/MidAmerica Airport (0 miles)

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  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    68.1 °F
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