South Chicago Heights Weather Forecast
- 59
- 83
Mostly Sunny
- 61
- 86
Mostly Sunny
- 62
- 86
Slight Chance Thunderstorms
- 63
- 84
Chance Rain Showers
- 63
- 82
Chance Thunderstorms
- 62
- 81
Chance Rain Showers
- 59
- 78
Chance Rain Showers
Today 17 Sep Southern Cook
Mostly sunny. Highs in the mid 80s. Northeast Winds 5 to 10 Mph.
Tonight 17 Sep Southern Cook
Mostly clear. Lows in the upper 50s. East Winds around 5 Mph in the Evening, becoming light and variable.
South Chicago Heights Temperature Statistics
September Temperature
Lansing Municipal Airport (6.8 miles)
Lowest 8 September, 2025
40.1 °FAverage September
63.7 °FHighest 14 September, 2025
83.3 °F
Climate (2020–Present)
Lansing Municipal Airport (6.8 miles)
Average Low 2020–2025
42.3 °FAverage 2020–2025
51.4 °FAverage High 2020–2025
60.3 °F