Maple Island Conservation Area Weather Forecast
- 59
- 78
Becoming Sunny
- 60
- 81
Rain Showers Likely
- 70
- 89
Rain Showers
- 60
- 80
Chance Rain Showers
- 62
- 82
Mostly Sunny
- 67
- 86
Chance Rain Showers
Today 15 Jun St. Charles
Sunny. Highs in the upper 70s. Northwest Winds around 5 Mph.
Tonight 15 Jun St. Charles
Mostly clear. Lows in the upper 50s. Southwest 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
74 °FHighest 9 June, 2026
91.4 °F
Climate (2021–Present)
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