Maple Island Conservation Area Weather Forecast

    • 67
    • 87

    Sunny

    • 69
    • 89

    Sunny

    • 72
    • 92

    Mostly Sunny

    • 73
    • 92

    Mostly Sunny

    • 75
    • 93

    Mostly Sunny

    • 76
    • 95

    Mostly Sunny

Today 12 Jul St. Charles

Sunny. Highs in the mid 80s. Northeast Winds 10 to 15 Mph.

Tonight 12 Jul St. Charles

Mostly clear. Near steady temperature around 70. North Winds around 5 Mph.

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Maple Island Conservation Area Temperature Statistics

July Temperature

St. Louis Regional Airport (6.2 miles)

  • Lowest 5 July, 2026

    68.7 °F

  • Average July

    78 °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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