Maple Island Conservation Area Weather Forecast

    • 69
    • 93

    Rain Showers Likely

    • 60
    • 81

    Becoming Sunny

    • 66
    • 84

    Partly Sunny

    • 68
    • 86

    Rain Showers Likely

    • 66
    • 84

    Rain Showers

    • 62
    • 80

    Partly Sunny

    • 63
    • 82

    Partly Sunny

Today 17 Jun St. Charles

Sunny with a slight chance of Showers and Thunderstorms. Some Thunderstorms may be severe with damaging Winds, large Hail, and Tornadoes. Windy, warmer. Near steady temperature around 90. Southwest Winds 20 to 30 Mph with Gusts up to 50 Mph. Chance of rain 20 percent.

Tonight 17 Jun St. Charles

Mostly cloudy. Numerous Showers and Thunderstorms this evening. Some Thunderstorms may be severe with damaging Winds, large Hail, and Tornadoes. Lows in the upper 60s. West Winds 15 to 20 Mph. Gusts up to 45 Mph this evening. Chance of rain 70 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

    73.1 °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

    66.7 °F
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