"Excessive panting, lethargic, stumbling around, vomiting, glazed eyes," said Melissa Gable with Maricopa County Animal Care and Control.
That is what you don't want to see from your dog. Snub-nosed dogs do the worst in heat.
"The dogs with the flat faces, the pugs, pug-mixes, the Boston terrier, shih tzu, those types of dogs because of their facial structure, they cannot pant as efficiently as other dogs with a longer snout," said Gable.
Gable says the dogs sweat differently, and cannot cool themselves off.
"Their sweat glands are in their feet, so they rely on a lot of panting to keep them cool," she said.
If you have to keep them outside during the day, you need to make sure they have shade and plenty of water, and when your dog is let back in, cool them off.
"I always get a cool compress, I put it on their ears, their belly, I cool their feet off... and really we've gotten to the point where it is too hot to walk your dog in the middle of the day. You have to do it early in the morning or late in the evening, a way to test out if the sidewalk is cool enough is to put your hack hand down on the sidewalk and county to 7. If it's too hot for you, it's too hot for the dog," said Gable.
And, of course, never leave your dog inside a hot car.
"The police and fire do have the ability to break the window and get the dog out," she said.
Gable says the best thing to do is crate train your dog, that way they can be left inside the home with the air conditioning on.
For more tips on how to keep your pets cool, visit: http://www.humanesociety.org/animals/resources/tips/pets_safe_heat_wave.html