Maple Island Conservation Area Weather Forecast

    • 69
    • 86

    Partly Sunny

    • 69
    • 87

    Mostly Sunny

    • 73
    • 91

    Mostly Sunny

    • 74
    • 95

    Rain Showers Likely

    • 71
    • 89

    Chance Thunderstorms

    • 70
    • 89

    Slight Chance Thunderstorms

Today 6 Jul St. Charles

Mostly sunny. Patchy fog in the morning. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the mid 80s. North Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 6 Jul St. Charles

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Maple Island Conservation Area Temperature Statistics

July Temperature

St. Louis Regional Airport (6.2 miles)

  • Lowest 2 July, 2026

    72.3 °F

  • Average July

    82.9 °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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