Tucson, AZ – Residents in Tucson can expect scorching temperatures today, with highs reaching 105°F by late afternoon. Those venturing outside are advised to take necessary precautions, especially during peak heat hours from 11 a.m. to 4 p.m. The National Weather Service (NWS) has issued a heat advisory for the region, warning of dangerous conditions, especially for sensitive groups like the elderly and outdoor workers.