Dardenne Prairie Weather Forecast

    • 68
    • 81

    Chance Thunderstorms

    • 65
    • 84

    Partly Sunny

    • 67
    • 86

    Slight Chance Thunderstorms

    • 65
    • 85

    Mostly Sunny

    • 65
    • 83

    Slight Chance Thunderstorms

    • 67
    • 83

    Partly Sunny

    • 68
    • 86

    Partly Sunny

Today 19 Aug St. Charles

Mostly cloudy with a chance of Showers and Thunderstorms. Near steady temperature around 80. South Winds around 5 Mph. Chance of rain 40 percent.

Tonight 19 Aug St. Charles

Mostly cloudy. A chance of Showers and Thunderstorms, mainly in the evening. Patchy fog after midnight. Lows in the upper 60s. Northeast Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dardenne Prairie Temperature Statistics

August Temperature

St. Louis, Spirit Of St. Louis Airport (8.7 miles)

  • Lowest 3 August, 2026

    62.7 °F

  • Average August

    79.8 °F

  • Highest 11 August, 2026

    95.6 °F

Climate (2021–2026)

St. Louis, Spirit Of St. Louis Airport (8.7 miles)

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  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    57.5 °F

  • Average High 2021–2026

    68.9 °F
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