What orchid is best for mounting in dry environment?

[ambersartain]

Well, I live in Tupelo, MS. In the summer it's hot and humid and in the winter, it's fairly cold and I have to bring them in. Lately it's been really hot and that makes the humidity less noticeable or maybe it feels worse because of the humidity.
The epi. and catt. were bag babies from Lowe's, and the dend. was a NOID from Wal-mart, although it looks very much like a pic of Temasek Princess that I found. I was hoping at least that would tell me the type of dend. it was, and if that's the case, it's a phalaenopsis type. I'm not really sure about the other two. Oh yeah, the catt. is actually blc. if that helps any and I read somewhere that the epi. was mislabled at the store and was actually an epicyclia now. I think I just confused myself more.
The temperature here is going to be staying around 90 degrees F for the next several days. Should I bring them in?
I think the humidity is around 50% in the afternoon, but it looks like it changes a lot at night.