it has a baby
Temperature affects natural rubber directly. In hot temperature, rubber will stretch but in cold temperature it becomes brittle and hard.
Lower temperature will increase its' elasticity
Temperature does not affect the bounce of a rubber ball. Let's say you bounce a rubber ball on the grass. The result will be different then bouncing a rubber ball on a concrete surface. The result is different because you are using a solid, hard surface to bounce the ball with. But the temperature will not affect the bounce of a rubber ball. you can test it out for youself.
it makes it not bounce as high
yes it does colder rubber bands tent to have more elasticity
wind has no affect on rubber
salt has no affect on rubber
yes colder is less elastic than warmer