Chicago Heights Weather Forecast

    • 51
    • 67

    Decreasing Clouds

    • 50
    • 70

    Partly Sunny

    • 52
    • 70

    Partly Sunny

    • 53
    • 72

    Mostly Sunny

    • 60
    • 73

    Rain Showers Likely

    • 60
    • 72

    Chance Rain Showers

Today 25 Sep Southern Cook

Mostly cloudy. Isolated Sprinkles late in the morning. Highs in the upper 60s. Northeast Winds around 5 Mph.

Tonight 25 Sep Southern Cook

Partly cloudy in the Evening, then clearing. Lows in the lower 50s. Northeast Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Chicago Heights Temperature Statistics

September Temperature

Lansing Municipal Airport (5.6 miles)

  • Lowest 14 September, 2026

    47.3 °F

  • Average September

    70.9 °F

  • Highest 2 September, 2026

    94.6 °F

Climate (2021–2026)

Lansing Municipal Airport (5.6 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