St Joe Weather Forecast
- 74
- 98
Hot
- 72
- 100
Isolated Thunderstorms
- 66
- 93
Mostly Sunny
- 65
- 90
Mostly Sunny
- 72
- 95
Mostly Sunny
- 73
- 98
Slight Chance Thunderstorms
- 66
- 92
Slight Chance Thunderstorms
Today 4 Sep Monroe
Sunny, hot. Near steady temperature in the upper 90s. Southwest Winds around 5 Mph. Heat index Values up to 106.
Tonight 4 Sep Monroe
Mostly clear. Lows in the mid 70s. Light and variable Winds, becoming southwest around 5 Mph after midnight. Heat index Values up to 106 early this evening.
St Joe Temperature Statistics
September Temperature
St. Louis Downtown Airport (22.4 miles)
Lowest 1 September, 2026
70.6 °FAverage September
86.2 °FHighest 1 September, 2026
100.7 °F
Climate (2021–2026)
St. Louis Downtown Airport (22.4 miles)
Average Low 2021–2026
47.7 °FAverage 2021–2026
58.6 °FAverage High 2021–2026
69.4 °F