Is it okay to play basketball outside at 38 degrees? Will basketball be bad?

I usually practice at the bottom of our building at noon (because there was no one at that time), and it is usually 35 degrees. An hour doesn't matter. My Spalding's ball hasn't changed shape, but it's black, quite black. But don't play for a long time, you will get heatstroke.

Besides, don't blow the ball too big. Generally speaking, for a good ball, you should hold it over your head and let it go, as long as it can bounce to your chest, otherwise the ball will be deformed when it is very hot. The ball should not explode! ?