About Palos Hills, IL's Climate & Weather History

Palos Hills, in Illinois, United States, is home to roughly 17,600 people in the Central Time Zone at 41.7°N latitude.

In 2025, Palos Hills recorded an average annual temperature of 51°F — about 1.0°F below the 30-year normal of 52°F. The hottest day reached 95°F in August; the coldest was -8°F in February. Total precipitation was 38 inches (wetter than usual). The wettest month was July.