Bystrom Bay Weather Forecast
- 52
- 65
Mostly Cloudy
- 52
- 62
Rain Showers Likely
- 55
- 65
Rain Showers Likely
- 53
- 69
Chance Rain Showers
- 52
- 72
Chance Rain Showers
- 51
- 68
Partly Sunny
Today 18 Sep North St. Louis
Cloudy. Highs in the mid 60s. East Winds 5 to 10 Mph.
Tonight 18 Sep North St. Louis
Mostly cloudy. Lows in the lower 50s. East Winds around 5 Mph.
Bystrom Bay Temperature Statistics
September Temperature
Cook Municipal Airport (14.3 miles)
Lowest 7 September, 2025
32 °FAverage September
57 °FHighest 15 September, 2025
82.4 °F
Climate (2020–Present)
Cook Municipal Airport (14.3 miles)
Average Low 2020–2025
30.5 °FAverage 2020–2025
41.7 °FAverage High 2020–2025
51.8 °F