Bethalto Weather Forecast

    • 61
    • 73

    Rain Showers

    • 55
    • 71

    Rain Showers

    • 49
    • 71

    Chance Rain Showers

    • 46
    • 66

    Mostly Sunny

    • 48
    • 69

    Mostly Sunny

    • 51
    • 72

    Mostly Sunny

    • 55
    • 77

    Mostly Sunny

Today 30 Apr Madison

Mostly cloudy with scattered Showers and Thunderstorms. Highs in the lower 70s. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 30 Apr Madison

Showers with Thunderstorms likely late this Evening, then Showers and Thunderstorms likely. Some Thunderstorms may produce damaging Winds, large Hail, and Tornadoes late this evening. Near steady temperature in the mid 60s. Southeast Winds 5 to 10 Mph, becoming south. Chance of rain 80 percent.

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Bethalto Temperature Statistics

April Temperature

St. Louis Regional Airport (1.2 miles)

  • Lowest 8 April, 2025

    28.4 °F

  • Average April

    53.6 °F

  • Highest 28 April, 2025

    84.2 °F

Climate (2020–Present)

St. Louis Regional Airport (1.2 miles)

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  • Average Low 2020–2025

    45.9 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    65.9 °F
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