Chicago Heights Weather Forecast
- 68
- 83
Severe Tstms
- 68
- 83
Chance Thunderstorms
- 66
- 80
Chance Rain Showers
- 65
- 77
Chance Thunderstorms
- 69
- 81
Chance Thunderstorms
- 65
- 81
Chance Rain Showers
Today 11 Aug Southern Cook
A chance of Showers and Thunderstorms early in the Morning, then Showers and Thunderstorms in the late morning and early afternoon. A chance of Showers and Thunderstorms late. Some Thunderstorms may be severe until late afternoon. Locally heavy rainfall possible until late afternoon. Humid with Highs in the lower 80s. South Winds around 5 Mph. Chance of precipitation 80 percent.
Tonight 11 Aug Southern Cook
Mostly cloudy. A chance of Showers and Thunderstorms. Near steady temperature in the mid 70s. Southeast Winds around 5 Mph. Chance of precipitation 40 percent.
Chicago Heights Temperature Statistics
August Temperature
Lansing Municipal Airport (5.6 miles)
Lowest 3 August, 2026
60.4 °FAverage August
72.3 °FHighest 7 August, 2026
84.4 °F
Climate (2021–2026)
Lansing Municipal Airport (5.6 miles)
Average Low 2021–2026
42.5 °FAverage 2021–2026
51.6 °FAverage High 2021–2026
60.5 °F