Oak Park, in Illinois, United States, is home to roughly 52,300 people in the Central Time Zone at 41.9°N latitude.
In 2025, Oak Park recorded an average annual temperature of 51°F — about 1.1°F below the 30-year normal of 52°F. The hottest day reached 96°F in August; the coldest was -9°F in February. Total precipitation was 36 inches (near normal). The wettest month was June.
View current conditions and forecast for Oak Park · More cities in Illinois