The prevailing scientific consensus attributes the increase in intensity and frequency of heat waves to climate change. Meanwhile, cities, acting as “heat islands,” often reach higher temperatures than their surrounding areas. Due to this combination of climate change and urban-induced warming, what we currently deem as “extreme” heat could become the norm by mid-century. Further, climate change-related threats such as wildfires increase the risk of infrastructure failures, which, coinciding with hot weather, can result in drastic outcomes (eg, a city-wide blackout during hot weather). In light of these alarming trends, this editorial summarizes the challenges facing the older adult population and proposes areas of research aimed at helping them adapt to the new climate reality.