I know very little about the mechanical workings of cars, so please tolerate my lack of knowledge.
I have a 2005 Jeep Grand Cherokee which I really like. It has one strange quirk. Whenever it rains heavily causing water to be thrown up by the car in front, when I come to a stop and idle, quite a lot of steam comes out from my radiator. The radiator isn't leaking and my coolant is full, and this only happens in heavy rain.
Is this simply a case of cold water being heated by the hot elements of the radiator or is something else going on?