According to the American Kennel Club, the normal temperature for dogs and puppies is between 101 to 102.5 degrees Fahrenheit. Take a puppy with a temperature of 104 or greater to a vet immediately.
Take dogs' and puppies' temperatures using a rectal thermometer. Apply a small amount of petroleum jelly on the end of the thermometer to make it easy to insert. Have someone hold the dog by the head. Lift the tail up, and insert the thermometer into the rectum no further than 1 inch. Hold the thermometer without letting go for approximately three minutes, then gently remove it and get a reading.