With sudden changes in temperature, you may find your dog panting more than usual as s/he acclimates and not think "thirsty" at first. Dogs cannot shed layers quickly like humans can, and, if walking on surfaces such as blacktop pavement, may be experiencing hotter temperatures than you are several feet from the pavement.
As summer nears, I am extra careful to store several bottles of water in the back of the car for those times when I am in need of a quick drink of water -- both for people and pets! I should really have water available year round, but it is especially important in summer as the days are longer and activities are many.
Dogs, especially elderly and short-nosed ones, are sensitive to heat and may be more prone to heatstroke. Having fresh cool water available on demand is one way to reduce the risk of heat stroke. Here are some travel and collapsible pet bowl choices to fit your busy lifestyle. Have fun and stay cool this summer with your pets!

