Heat stroke is an increase in body temperature caused by environmental conditions.
Hyperthermia may be a life-threatening condition, and does require immediate treatment. A dog’s normal body temperature is 101.5°F plus or minus 1 degree Fahrenheit, and any time the body temperature is higher than 105°F, a true emergency exists. Heatstroke generally occurs in hot summer weather when dogs are left with inadequate ventilation in hot vehicles.
However, heat stroke may also occur in other conditions, including
- When an animal is left outdoors in hot/humid conditions without adequate shade.
- When exercised in hot/humid weather.
- Other predisposing factors may be obesity and/or diseases affecting a pet’s airway.

