Maple Island Conservation Area Weather Forecast
- 64
- 81
Partly Sunny
- 67
- 84
Chance Rain Showers
- 68
- 86
Rain Showers
- 72
- 83
Rain Showers
- 74
- 91
Chance Thunderstorms
- 76
- 96
Mostly Sunny
- 78
- 97
Hot
Today 23 Jun St. Charles
Sunny. Not as cool with Highs in the lower 80s. Northeast Winds around 5 Mph.
Tonight 23 Jun St. Charles
Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 60s. East Winds around 5 Mph.
Maple Island Conservation Area Temperature Statistics
June Temperature
St. Louis Regional Airport (6.2 miles)
Lowest 3 June, 2026
52.5 °FAverage June
72.1 °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
66.7 °F