It will not survive in that high of a temp. Keep lots of airation. Your fish are going to have a very high metabolism in that temp, so feed well, and do extra water changes. Watch for aggression.
Add salt as a precaution so it can eliminate the remaining ich. I wouldn't rely on the high temp alone to do the job. You have to be very sure you are eliminating ich altogether as it is incredibly dangerous encouraging secondary infections once they infiltrate the fish's bloodstream in vast numbers.