Cottleville Weather Forecast
- 77
- 97
Hot
- 76
- 96
Mostly Sunny
- 77
- 93
Slight Chance Thunderstorms
- 76
- 94
Slight Chance Thunderstorms
- 75
- 96
Mostly Sunny
- 77
- 97
Mostly Sunny
Today 23 Jul St. Charles
Sunny. A slight chance of Showers and Thunderstorms this afternoon. Hot with Highs in the upper 90s. South Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 115.
Tonight 23 Jul St. Charles
Mostly clear. Humid with Lows in the upper 70s. South Winds around 5 Mph. Heat index Values up to 111 early in the evening.
Cottleville Temperature Statistics
July Temperature
St. Louis, Spirit Of St. Louis Airport (6.2 miles)
Lowest 2 July, 2025
62.7 °FAverage July
80.2 °FHighest 16 July, 2025
95.6 °F
Climate (2020–Present)
St. Louis, Spirit Of St. Louis Airport (6.2 miles)
Average Low 2020–2025
45.8 °FAverage 2020–2025
56.8 °FAverage High 2020–2025
68 °F