Dupo Weather Forecast

    • 57
    • 78

    Decreasing Clouds

    • 59
    • 79

    Mostly Sunny

    • 62
    • 83

    Slight Chance Thunderstorms

    • 71
    • 89

    Rain Showers

    • 63
    • 83

    Rain Showers Likely

    • 64
    • 84

    Partly Sunny

Today 14 Jun St. Clair

Mostly cloudy with a slight chance of Thunderstorms with isolated Showers this Morning, then mostly sunny this afternoon. Highs in the upper 70s. Northwest Winds 15 to 20 Mph. Gusts up to 35 Mph this morning. Chance of rain 20 percent.

Tonight 14 Jun St. Clair

Mostly clear in the Evening, then becoming partly cloudy. Cooler with Lows in the mid 50s. Northwest Winds 10 to 15 Mph, Diminishing to around 5 Mph after midnight.

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Dupo Temperature Statistics

June Temperature

St. Louis Downtown Airport (4.3 miles)

  • Lowest 3 June, 2026

    52.6 °F

  • Average June

    77.6 °F

  • Highest 10 June, 2026

    93.7 °F

Climate (2021–Present)

St. Louis Downtown Airport (4.3 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    69.3 °F
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