The Region of Waterloo’s “Extreme Heat” page offers essential information on recognizing and mitigating the health risks associated with high temperatures. It emphasizes the importance of staying cool during summer months, especially when temperatures exceed normal levels. The page identifies vulnerable groups, including older adults, infants, outdoor workers, and individuals with chronic illnesses, who are at higher risk during extreme heat events. It also explains the Humidex—a Canadian measure that combines temperature and humidity to reflect perceived temperature—and provides guidance on receiving weather alerts from Environment and Climate Change Canada. Additionally, the page offers tips on protecting oneself from extreme heat and humidity, and information about local cooling centers.