West Dundee is a city of approximately 7,400 people in Illinois, United States. Located in the Central Time Zone at 42.1°N latitude.
In 2025, West Dundee recorded an average annual temperature of 50°F — about 0.9°F below the 30-year normal of 51°F. The hottest day reached 93°F in May; the coldest was -11°F in February. Total precipitation was 33 inches (near normal). The wettest month was July.
View current conditions and forecast for West Dundee · More cities in Illinois