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.
Maple Island Conservation Area Temperature Statistics
June Temperature
St. Louis Regional Airport (6.2 miles)
Lowest 3 June, 2026
52.5 °FAverage June
71.4 °FHighest 9 June, 2026
91.4 °F
Climate (2021–2026)
St. Louis Regional Airport (6.2 miles)
Average Low 2021–2026
46.5 °FAverage 2021–2026
54.5 °FAverage High 2021–2026
66.6 °F