Thunderstorms could bring localized heavy rainfall, especially in areas like Mobile, AL, and Albany, NY, where precipitation chances reach 100%. High temperatures in the southern U.S., such as Montgomery, AL, and New Orleans, LA, may pose heat-related risks. UV indices are high in several regions, including Miami, FL, and Nashville, TN, increasing the risk of sunburn and heat exhaustion. Travelers and residents in affected areas should remain cautious of potential flooding and heat-related illnesses.