Summer is a fun season for the whole family, including its four-legged members. While there are some concerns with bringing your furry friends with you on your summer outings, it can be done safely. Dogs in the heat Dogs, like, humans, can get too hot outside. Some signs of overheating include excessive panting; dry, pale gums; increased salivation; an erratic or rapid pulse; confusion; weakness; diarrhea; vomiting and maybe even rectal bleeding. If you notice any of these signs, move your pet to a cooler area immediately. Remember that dogs with heavy coats and shorter muzzles tend to get hotter faster than other breeds.