The heatwave poses risks of heat-related illnesses, particularly for vulnerable populations such as the elderly, children, and those with pre-existing health conditions. The lack of significant overnight cooling may exacerbate these risks, especially in areas under the Heat Advisory. Residents in the valley and lower mountain foothills are most affected, with temperatures reaching triple digits. Coastal areas and mountain regions will experience less severe impacts but should still prepare for warmer-than-usual conditions mid-week. The dry weather also increases the risk of wildfires in the region.