Fairview Heights Weather Forecast

    • 67
    • 80

    Rain Showers Likely

    • 72
    • 87

    Rain Showers Likely

    • 76
    • 94

    Mostly Sunny

    • 77
    • 99

    Hot

    • 74
    • 95

    Partly Sunny

    • 72
    • 91

    Partly Sunny

Today 24 Jul St. Clair

Partly sunny in the Morning, then becoming mostly cloudy. A 50 percent chance of Showers. Highs in the upper 70s. Southeast Winds around 5 Mph.

Tonight 24 Jul St. Clair

Partly cloudy. Lows in the lower 60s. Light and variable Winds.

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Fairview Heights Temperature Statistics

July Temperature

Belleville, Scott AFB/MidAmerica Airport (7.5 miles)

  • Lowest 13 July, 2026

    70 °F

  • Average July

    81 °F

  • Highest 2 July, 2026

    95.5 °F

Climate (2021–2026)

Belleville, Scott AFB/MidAmerica Airport (7.5 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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