Maple Island Conservation Area Weather Forecast

    • 64
    • 84

    Mostly Sunny

    • 67
    • 85

    Rain Showers

    • 57
    • 76

    Partly Sunny

    • 59
    • 78

    Partly Sunny

    • 63
    • 82

    Chance Rain Showers

    • 70
    • 86

    Rain Showers Likely

Today 12 Jun St. Charles

Sunny, cooler with Highs in the lower 80s. Northwest Winds around 5 Mph.

Tonight 12 Jun St. Charles

Mostly clear. Lows in the lower 60s. Northeast Winds around 5 Mph, becoming southeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Maple Island Conservation Area Temperature Statistics

June Temperature

St. Louis Regional Airport (6.2 miles)

  • Lowest 3 June, 2026

    52.5 °F

  • Average June

    74.3 °F

  • Highest 9 June, 2026

    91.4 °F

Climate (2021–Present)

St. Louis Regional Airport (6.2 miles)

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  • Average Low 2021–2026

    46.5 °F

  • Average 2021–2026

    54.5 °F

  • Average High 2021–2026

    66.7 °F
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