LatestExperts warn that heat-related emergencies in dogs and cats can develop within minutes, especially in hot vehicles or on sun-baked surfaces, with dehydration sometimes signaling underlying conditions and cats being harder to detect thirst deficits. Outdoor pets and those with preexisting health issues need extra vigilance, with prevention centered on shade, fresh water, breaks from heat, avoiding parked cars, and prompt action at first signs of overheating.Aug 22, 2026