Maple Island Conservation Area Weather Forecast

    • 64
    • 84

    Rain Showers

    • 69
    • 90

    Mostly Sunny

    • 69
    • 91

    Rain Showers Likely

    • 59
    • 82

    Thunderstorms Likely

    • 54
    • 72

    Slight Chance Rain Showers

    • 55
    • 74

    Partly Sunny

Today 16 May St. Charles

Mostly cloudy with a chance of Thunderstorms. Showers, mainly in the morning. Highs in the mid 80s. South Winds 5 to 10 Mph. Chance of rain 90 percent.

Tonight 16 May St. Charles

Partly cloudy. Lows in the mid 60s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Maple Island Conservation Area Temperature Statistics

May Temperature

St. Louis Regional Airport (6.2 miles)

  • Lowest 7 May, 2026

    39.6 °F

  • Average May

    57.8 °F

  • Highest 12 May, 2026

    80.6 °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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