"Looks like garden soil in those pots. ... Looks like a lot of clay, can't really tell, but watering every day is probably too much. Gotta have proper chemicals with which to do photosynthesis or death."
"Cut those flowers off as soon as possible. All that energy going into making seed could be better used in the plant itself. Get rid of the dried and even buds until we can better know what the factors truly are."
~stormy
"Too hot and roses love deep pots- deeper the better and less watering, to stop anything else going wrong remove all dead material from this situation and dead head them too, feed often (rose feed bought at any supermarket) and try to moisten the air around them on a very hot day! The top photo show signs of scorch, if you notice the one in the big pot is doing very well- so put the others if their still alive in a bigger pot! And stand the pots in trays. This will help add moisture to the surrounding air and the plants will let you know when to water again when they're dry."
~olantigh