About Aledo, IL's Climate & Weather History

Aledo, in Illinois, United States, is home to roughly 3,600 people in the Central Time Zone at 41.2°N latitude.

In 2025, Aledo recorded an average annual temperature of 52°F — about 2.3°F above the 30-year normal of 50°F. The hottest day reached 95°F in June; the coldest was -10°F in January. Total precipitation was 28 inches (drier than usual). The wettest month was July.