Maple Island Conservation Area Weather Forecast
- 47
- 81
Rain Showers
- 39
- 58
Mostly Cloudy
- 37
- 62
Sunny
- 40
- 68
Mostly Sunny
- 43
- 74
Partly Sunny
- 46
- 76
Mostly Sunny
Today 15 Oct St. Charles
Mostly cloudy late this Morning, then becoming partly sunny. Patchy fog late this morning. Showers likely with a chance of Thunderstorms. Highs in the lower 80s. Southeast Winds 5 to 10 Mph, becoming south with Gusts up to 20 Mph this afternoon. Chance of rain 70 percent.
Tonight 15 Oct St. Charles
A chance of Thunderstorms in the evening. Numerous Showers. Much cooler with Lows in the upper 40s. West Winds 10 to 15 Mph, becoming northwest 15 to 20 Mph after midnight. Chance of rain 70 percent.
Maple Island Conservation Area Temperature Statistics
October Temperature
St. Louis Regional Airport (6.2 miles)
Lowest 6 October, 2026
43.2 °FAverage October
63.2 °FHighest 12 October, 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