Maple Island Conservation Area Weather Forecast

    • 67
    • 87

    Sunny

    • 68
    • 88

    Sunny

    • 71
    • 91

    Mostly Sunny

    • 73
    • 92

    Mostly Sunny

    • 74
    • 94

    Mostly Sunny

    • 75
    • 94

    Mostly Sunny

    • 74
    • 94

    Mostly Sunny

Today 12 Jul St. Charles

Sunny. Near steady temperature in the mid 80s. Northeast Winds 5 to 10 Mph.

Tonight 12 Jul St. Charles

Clear. Lows in the upper 60s. Northeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Maple Island Conservation Area Temperature Statistics

July Temperature

St. Louis Regional Airport (6.2 miles)

  • Lowest 5 July, 2026

    68.7 °F

  • Average July

    77.8 °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

    66.7 °F
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