Kildeer is a city of approximately 4,000 people in Illinois, United States. Located in the Central Time Zone at 42.2°N latitude.
In 2025, Kildeer recorded an average annual temperature of 50°F — about 0.9°F below the 30-year normal of 51°F. The hottest day reached 94°F in June; the coldest was -10°F in February. Total precipitation was 34 inches (wetter than usual). The wettest month was June.
View current conditions and forecast for Kildeer · More cities in Illinois