Maple Island Conservation Area Weather Forecast
- 49
- 68
Mostly Sunny
- 51
- 74
Rain Showers Likely
- 55
- 80
Rain Showers Likely
- 46
- 69
Mostly Sunny
- 51
- 72
Mostly Sunny
- 57
- 79
Slight Chance Thunderstorms
Today 7 May St. Charles
Sunny. Highs in the upper 60s. Southwest Winds 10 to 15 Mph.
Tonight 7 May St. Charles
Mostly clear. Lows in the upper 40s. Southwest Winds 5 to 10 Mph.
Maple Island Conservation Area Temperature Statistics
May Temperature
St. Louis Regional Airport (6.2 miles)
Lowest 1 May, 2026
42.8 °FAverage May
58.6 °FHighest 4 May, 2026
75.2 °F
Climate (2021–Present)
St. Louis Regional Airport (6.2 miles)
Average Low 2021–2026
46.5 °FAverage 2021–2026
54.4 °FAverage High 2021–2026
66.7 °F