About Park City, IL's Climate & Weather History

Park City, in Illinois, United States, is home to roughly 7,400 people in the Central Time Zone at 42.3°N latitude.

In 2025, Park City recorded an average annual temperature of 50°F — about 1.2°F above the 30-year normal of 48°F. The hottest day reached 96°F in June; the coldest was -9°F in February. Total precipitation was 32 inches (drier than usual). The wettest month was June.