When the temperature outside nears 3-digits, the inside of a locked car can heat to an oven in mere minutes.
The Central Pennsylvania Humane Society said the phone rang off the hook Friday from people reporting pets trapped in boiling cars.
Tammi Ingram said 5 dogs were rescued in mall and grocery store parking lots in Blair County.
The dogs were taken to the humane society and Ingram said the owners will likely be cited and face humane charges.
Locked inside a car on a hot day, Ingram said a dog can die in as little as three minutes.
"It turns my stomach inside out to see it because I know that inside that car it is at least 160 degrees," she said. Adding, "I think of myself sitting in that car breathing in hot air with a winter coat on. You know they are suffering a lot.
Only police have authority to enter a vehicle to retrieve an animal.
Anyone who sees an animal locked in a car in dangerous temperatures is encouraged to call police, non-emergency 911, or their local Humane Society immediately.