Signs of heat stroke are intense, rapid panting, wide eyes, salivating, staggering and weakness. Advanced heat stroke victims will collapse and become unconscious. The gums will appear pale and dry. Any temperature above 106 degrees is dangerous. The longer the temperature remains at or above 106 degrees the more serious the situation.
If you suspect your dog has heat stroke, place him/her in a tub of cool running water or spray with a hose, being sure the cool water contacts the skin and doesn’t simply run off the coat. Thoroughly wet the belly and inside the legs. Run the cool water over the tongue and mouth. Take a rectal temperature if possible to know when to stop cooling. A safe temperature is about 103 degrees. Seek veterinary attention as soon as possible.