About Midlothian, IL's Climate & Weather History

Midlothian is a city of approximately 14,800 people in Illinois, United States. Located in the Central Time Zone at 41.6°N latitude.

In 2025, Midlothian recorded an average annual temperature of 51°F — about 0.9°F below the 30-year normal of 52°F. The hottest day reached 96°F in July; the coldest was -8°F in February. Total precipitation was 36 inches (near normal). The wettest month was July.