Maple Island Conservation Area Weather Forecast

    • 73
    • 93

    Chance Thunderstorms

    • 71
    • 89

    Thunderstorms Likely

    • 70
    • 87

    Chance Thunderstorms

    • 69
    • 88

    Slight Chance Rain Showers

    • 71
    • 89

    Mostly Sunny

    • 72
    • 92

    Mostly Sunny

Today 9 Jul St. Charles

Partly sunny. A chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the lower 90s. Southwest Winds around 5 Mph. Chance of rain 50 percent. Heat index Values up to 103.

Tonight 9 Jul St. Charles

Mostly clear. Near steady temperature in the lower 70s. South Winds around 5 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 5 July, 2026

    68.7 °F

  • Average July

    79.1 °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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