Blue Mound, Illinois — City Overview

Living in Blue Mound, summers are hot, with Jul highs around 85.0°F, while winters are cold — Feb lows average 22.0°F. Winter heating is a real budget factor — 4807 degree days means 4-5 months of meaningful energy bills. The area receives 44.1 inches of rainfall per year. Median household income: $57,097. With a 8.4% poverty rate and 81.6% homeownership, the community reflects a stable residential mix. Air quality is Good — avg AQI 45 over the past week.

View Blue Mound city guide

Updated August 31, 2026.

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