South Chicago Heights Weather Forecast

    • 62
    • 77

    Increasing Clouds

    • 68
    • 74

    Chance Rain Showers

    • 60
    • 77

    Rain Showers

    • 51
    • 65

    Chance Rain Showers

    • 51
    • 64

    Mostly Cloudy

    • 47
    • 66

    Mostly Sunny

Today 29 Sep Southern Cook

Partly cloudy. Areas of fog early in the morning. Highs in the upper 70s. South Winds around 5 Mph.

Tonight 29 Sep Southern Cook

Mostly cloudy. A slight chance of Showers late. Lows in the lower 60s. South Winds 5 to 10 Mph. Chance of precipitation 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

South Chicago Heights Temperature Statistics

September Temperature

Lansing Municipal Airport (6.8 miles)

  • Lowest 26 September, 2026

    46.9 °F

  • Average September

    69.6 °F

  • Highest 2 September, 2026

    94.6 °F

Climate (2021–2026)

Lansing Municipal Airport (6.8 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    60.4 °F
Get WillyWeather+ to remove ads