I don't know if he has regular access to water. For a couple of years he was chained out front with a darkly painted dog house and a spindly sapling (no shade). There was a deep, worn ring around his tiny area from him running and running and running in circles. They've had animal welfare called on them a few times, but the husky is still there. They moved it to a Chainlink kennel in the back where you can't see him.
Huskies can do alright in hot weather. Their fur is designed not only to insulate them in the cold, but also keep them cool in heat. One HUGE mistake husky owners who live in warm climates make is shaving/cutting their fur. This permanently damages the structure of the fur so badly that in a lot of cases, they no longer have any resistance to either cold or heat. It can also cause skin issues.
My grandparents have owned and bred huskies since I was very little. They've had as many as over 20 huskies at a time. Naturally, they all have to be kept outdoors (except for special cases, like old or sick or particularly calm dogs). But that's the thing: they are bred for exactly that!
Some are in kennels in pairs or groups of 3-5, depending on personality and relationship. Some are on chains where, yes, they go round and round and round. Dogs are rotated around periodically. Huskies have almost unlimited energy. No matter where you keep them, they are going to move. It's very rare that a husky ever completely adjusts to couch life.
They will dig holes and lay in them to keep cool. They don't actually need to drink all that much water on a hot day, as long as they aren't too active (though fresh water should always be available!). And on a very hot day they do just laze around. In the summer they're allowed to relax as much as they want. Late fall and winter is when they work. They LOVE to work! They pull sleds and carts easily, and they have fun doing it. If you've ever seen a sled dog race, you'll see and hear just how excited they are, barking and jumping and pulling at their leads like no tomorrow, until they hear the word "HIKE!" and they're off, silent, focused, doing what they're born to do. It's amazing!
Without knowing the physical condition of the dog it's hard to say if neglect/cruelty was involved. But these are my two cents so keep that in mind!