The persistent heat poses risks to vulnerable populations, including the elderly, children, and those with pre-existing health conditions. Prolonged exposure to high temperatures can lead to heat-related illnesses such as heat exhaustion and heatstroke. Urban areas like Washington, D.C., are particularly susceptible to the urban heat island effect, which can exacerbate nighttime temperatures. The ongoing heat wave also increases energy demand for cooling, potentially straining power grids and raising utility costs for residents.