Bethalto Weather Forecast

    • 39
    • 61

    Decreasing Clouds

    • 41
    • 63

    Mostly Sunny

    • 56
    • 69

    Rain Showers Likely

    • 58
    • 78

    Rain Showers Likely

    • 59
    • 73

    Rain Showers Likely

    • 40
    • 73

    Chance Thunderstorms

    • 35
    • 53

    Partly Sunny

Today 25 Mar Madison

Mostly sunny. Near steady temperature in the lower 60s. Northwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 25 Mar Madison

Mostly cloudy this Evening, then clearing. Lows in the upper 30s. North Winds 5 to 10 Mph, becoming southwest after midnight.

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Bethalto Temperature Statistics

March Temperature

St. Louis Regional Airport (1.2 miles)

  • Lowest 2 March, 2025

    19 °F

  • Average March

    46.6 °F

  • Highest 14 March, 2025

    80.6 °F

Climate (2020–Present)

St. Louis Regional Airport (1.2 miles)

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  • Average Low 2020–2025

    45.8 °F

  • Average 2020–2025

    53.7 °F

  • Average High 2020–2025

    65.9 °F
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