Maple Island Conservation Area Weather Forecast

    • 80
    • 99

    Chance Thunderstorms

    • 70
    • 92

    Partly Sunny

    • 68
    • 88

    Mostly Sunny

    • 70
    • 89

    Chance Rain Showers

    • 69
    • 84

    Chance Thunderstorms

    • 68
    • 84

    Chance Rain Showers

Today 27 Jul St. Charles

Sunny. A slight chance of Showers and Thunderstorms this afternoon. Hot with Highs in the upper 90s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 115.

Tonight 27 Jul St. Charles

Mostly clear. A slight chance of Showers and Thunderstorms in the evening. Humid with Lows in the upper 70s. Southwest Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 114 early in the evening.

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  • Temperature Real-Time

Maple Island Conservation Area Temperature Statistics

July Temperature

St. Louis Regional Airport (6.2 miles)

  • Lowest 24 July, 2026

    59.9 °F

  • Average July

    76.5 °F

  • Highest 2 July, 2026

    93.2 °F

Climate (2021–2026)

St. Louis Regional Airport (6.2 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    54.5 °F

  • Average High 2021–2026

    66.6 °F
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