Maple Island Conservation Area Weather Forecast

    • 64
    • 95

    Rain Showers

    • 65
    • 84

    Chance Rain Showers

    • 67
    • 85

    Rain Showers

    • 60
    • 77

    Partly Sunny

    • 61
    • 80

    Partly Sunny

    • 64
    • 83

    Slight Chance Thunderstorms

    • 70
    • 88

    Chance Thunderstorms

Today 11 Jun St. Charles

Sunny. Near steady temperature in the lower 90s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Heat index Values up to 106.

Tonight 11 Jun St. Charles

Showers with a chance of Thunderstorms this Evening, then partly cloudy after midnight. Some Thunderstorms may be severe with damaging Winds and large hail. Lows in the lower 60s. West Winds 15 to 20 Mph with Gusts up to 30 Mph, becoming northwest 5 to 10 Mph after midnight. Chance of rain near 100 percent.

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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

    73.4 °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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