About Lansing, IL's Climate & Weather History

Lansing, in Illinois, United States, is home to roughly 28,300 people in the Central Time Zone at 41.6°N latitude.

In 2025, Lansing recorded an average annual temperature of 51°F — about 1.0°F below the 30-year normal of 52°F. The hottest day reached 95°F in July; the coldest was -7°F in February. Total precipitation was 33 inches (near normal). The wettest month was July.