Heatstroke & Heat Exhaustion

Dogs cannot sweat. They cool themselves almost entirely through panting — and when panting isn't enough, their body temperature can spike to dangerous levels within minutes.

Normal body temperature for a dog is 101–102.5°F. Once temperature climbs above 104°F, you're in heat exhaustion territory. Above 106°F is heatstroke — a life-threatening emergency that can cause organ failure, brain damage, and death.

Early signs (heat exhaustion):

  • Heavy, excessive panting

  • Increased drooling

  • Restlessness or seeking cool surfaces

  • Mild lethargy or slowing down

  • Increased thirst

Emergency signs (heatstroke):

  • Uncontrolled, frantic panting

  • Bright red or very pale/grey gums

  • Vomiting or diarrhea (may be bloody)

  • Glazed, unfocused eyes

  • Stumbling, weakness, or collapse

  • Seizures

  • Loss of consciousness

What to do — act immediately:

  1. Move your dog out of the heat into shade or air conditioning right away

  2. Begin cooling with room temperature water — wet towels placed on the neck, armpits, and groin; wet the paw pads; run cool (not cold) water over the body

  3. Do not use ice or ice-cold water — this causes blood vessels to constrict, trapping heat inside and potentially sending the dog into shock

  4. Point a fan at your dog while cooling

  5. Get to an emergency vet as fast as possible — cooling before you arrive has been shown to increase survival rates from 50% to 80%

  6. Call ahead so the clinic is ready when you arrive

Never leave your dog in a parked car. On an 85°F day, the inside of a car reaches 102°F in just 10 minutes and 120°F within 30 minutes — even with the windows cracked. This is not a gray area: it is a medical emergency waiting to happen.

High-risk dogs: Brachycephalic (short-nosed) breeds like Bulldogs, Pugs, and French Bulldogs; overweight dogs; very young puppies and senior dogs; dogs with heart or respiratory conditions; and dogs that are not acclimated to heat.

Sources: AVMA (American Veterinary Medical Association,Veterinary Partner, VCA Animal Hospitals , PetMD , American Animal Hospital Association, MedVet, PMC / NIH peer-reviewed research, ASPCA Animal Poison Control, Merck Veterinary Manual, VIN (Veterinary Information Network), Cornell University College of Veterinary Medicine, Zoetis Petcare, Sustainable Vet, and trusted Veterinarians along my 17-year journey as a dog mom

The Good Boy Foundation is committed to providing valuable resources and education to empower pet parents in caring for their furry companions. However, it's important to note that the information provided on our website is intended for educational purposes only and should never replace the advice or treatment provided by a licensed veterinarian. While we strive to offer accurate and helpful guidance, we cannot be held responsible for any outcomes or consequences resulting from the application of this information. Pet parents are encouraged to consult with their veterinarian for personalized guidance and recommendations tailored to their pet's specific needs and circumstances.