ok. lets start from the beginning. he wasnt asking if he should use an umbrella if it was raining....read his question, that wasnt it. next, he was asking about bringing rain gear or an umbrella. as someone already said, the interview process is a nerve wracking one....people worry about what we should or shouldnt wear, blah blah blah. as the OP also said, he wasnt sure about showing up with rain gear and then having to worry about wear to stash it, thus the friendly shout out asking if anyone (especially those who have gone to kville) have had this experience. i'm sure he was hoping to have someone with that experience there tell him, "hey, dont worry about packing extra stuff, there at kville they will give you umbrellas if its raining." thus he could scratch an extra item off the list.
so lighten up.