With a population of around 8,900, Glencoe sits in Illinois, United States. The city operates in the Central Time Zone.
In 2025, Glencoe recorded an average annual temperature of 50°F — about 0.7°F below the 30-year normal of 51°F. The hottest day reached 94°F in June; the coldest was -7°F in January. Total precipitation was 31 inches (near normal). The wettest month was June.
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