Mokena is a city of approximately 19,900 people in Illinois, United States. Located in the Central Time Zone at 41.5°N latitude.
In 2025, Mokena recorded an average annual temperature of 51°F — about 1.1°F below the 30-year normal of 52°F. The hottest day reached 93°F in June; the coldest was -8°F in February. Total precipitation was 36 inches (wetter than usual). The wettest month was July.
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