About Channel Lake, IL's Climate & Weather History

With a population of around 1,700, Channel Lake sits in Illinois, United States. The city operates in the Central Time Zone.

In 2025, Channel Lake recorded an average annual temperature of 49°F — about 0.9°F above the 30-year normal of 48°F. The hottest day reached 94°F in June; the coldest was -9°F in February. Total precipitation was 30 inches (drier than usual). The wettest month was July.