Maple Island Conservation Area Weather Forecast

    • 72
    • 84

    Chance Thunderstorms

    • 76
    • 94

    Partly Sunny

    • 77
    • 97

    Hot

    • 77
    • 97

    Hot

    • 78
    • 97

    Hot

    • 78
    • 97

    Hot

Today 27 Jun St. Charles

Patchy fog in the morning. Mostly cloudy with a chance of Showers. A slight chance of Thunderstorms in the Morning, then a chance of Thunderstorms in the afternoon. Highs in the mid 80s. Southwest Winds around 5 Mph. Chance of rain 40 percent.

Tonight 27 Jun St. Charles

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Showers and Thunderstorms. Humid with Lows in the lower 70s. Southeast Winds around 5 Mph. Chance of rain 30 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

    71.4 °F

  • Highest 9 June, 2026

    91.4 °F

Climate (2021–2026)

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

    66.6 °F
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