07/21/2026
It’s that time of year. The time when we all have to watch our old dogs to be sure they’re not overheating before we even realize it. An old dog won't reliably tell you he's too hot. He'll lie in the sun too long because that's his spot. He'll follow you out to the mailbox at noon because he always has. He'll keep going on the walk because you're on it, and he'd rather be with you than comfortable. Our senior dogs don't complain - they compensate. And in July, that devotion can get them into real trouble before we notice there’s a problem.
Here's what's changed under the surface. An old dog regulates his body temperature far less reliably than he used to. His thirst signals fade with age, so he drinks less right when he needs more. And the heart or lung conditions many seniors live with - sometimes undiagnosed - make heat that much harder to manage. Add a coat that's gotten heavy or matted, and a hot afternoon stops being uncomfortable and starts being dangerous.
The good news: heat is one of the most preventable dangers our old dogs face. As their advocates and family members, it’s our job to make a few small changes for an enormous difference.
Seven things that genuinely help:
Move the walks to the edges of the day. Before 8 a.m. and after sunset are the safest windows for most of us, but you’ll need to go even earlier and later during heat waves. Before you set out, press the back of your hand to the pavement for 5 seconds - if you can't hold it there, it's too hot for his paws.
Make water impossible to ignore. Extra bowls around the house, a splash of water or a little low-sodium broth over his food, a few ice cubes in the bowl, or as a treat, maybe a pet fountain. A senior who won't seek water out will often drink when it finds him. If your dog will eat watermelon, cucumbers, or tomatoes, those are great water-filled snacks. Frozen pupsicles are a great mental and cooling activity!
Give him a cool place to land. Tile or a cooling mat, a fan down at floor level, shades drawn through the hottest hours. Fold a blanket over a floor vent for an air-conditioned bed.
Learn his gums now, while he's well. Lift his lip and press your finger to the gums- moist and pink is normal. Pale, dry, or tacky gums on a hot day is a red flag that he needs water and, maybe, a vet. When you press your finger into the gums, the color will drain, but should refill very quickly. If the white spot you pressed in takes more than 2-3 seconds to go away, that’s abnormal.
Never, ever leave him in the car. Not for a minute, not with the windows cracked or even wide open. On a warm day the inside becomes an oven faster than most people believe, and old dogs have the least ability to cope with it.
Know the emergency signs - and cool first. Heavy, frantic panting, bright-red gums, drooling, wobbliness, vomiting, or collapse can all mean heatstroke, a true emergency. The current veterinary guidance is cool first, then travel: get him out of the heat and pour or soak him with any water that's cooler than he is - cool or even cold is good, just not ice-cold - while a fan or breeze moves air over him, then head straight to the vet. (Ice-cold water can actually slow cooling, and the minutes you spend cooling him before the car really do matter.)
Don't leave an old dog outside unattended. Dogs with dementia aren’t able to problem-solve going back inside because they’re overheating, and some can’t find the door like they used to. And an old dog lying in the heat isn't always relaxing. Sometimes he has a hard time getting up, so he stays put - and then he’s overheating in a flash.
Part of advocating for your old dog is about being the one who notices - because he won't say a word until it's serious, and by then the easy fixes are behind us. In summer, we do the noticing for him.
