Even if you’re running a quick errand, a parked car can get extremely hot (even with cracked windows) and put a dog at risk for overheating and potentially death. A car’s interior temperature can rise significantly in the first 10 minutes. For example, it can be 94 degrees Fahrenheit outside, but the inside of a car can rise to 113 degrees Fahrenheit.
If you can’t bring them inside with you, it is best to leave your pup at home.