Fairview Heights Weather Forecast

    • 53
    • 75

    Slight Chance Thunderstorms

    • 52
    • 77

    Mostly Sunny

    • 60
    • 75

    Chance Thunderstorms

    • 55
    • 79

    Thunderstorms Likely

    • 53
    • 72

    Chance Rain Showers

    • 52
    • 71

    Chance Rain Showers

Today 24 Apr St. Clair

Mostly cloudy. A chance of Showers and Thunderstorms, mainly this morning. Highs in the mid 70s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming west this afternoon. Chance of rain 50 percent.

Tonight 24 Apr St. Clair

Mostly cloudy in the Evening, then clearing. Lows in the lower 50s. North Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fairview Heights Temperature Statistics

April Temperature

Belleville, Scott AFB/MidAmerica Airport (7.5 miles)

  • Lowest 6 April, 2026

    38.8 °F

  • Average April

    62.8 °F

  • Highest 17 April, 2026

    85.3 °F

Climate (2021–Present)

Belleville, Scott AFB/MidAmerica Airport (7.5 miles)

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  • Average Low 2021–2026

    47.7 °F

  • Average 2021–2026

    57.7 °F

  • Average High 2021–2026

    68 °F
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