I grown them in a greenhouse in the winter and keeping the temperature at 55. In the summer I take the sides off the greenhouse to get full breeze.
Really, depending on the type of orchid, you can grow them in many places. In the winter, I put some in a small greenhouse, others on an old lighted plant stand inside. Phals do well on the windowsill at work, or in the kitchen. In the summer, amost all species go outside - the dendrobiums and cattleyas under light shade, or protected from noon sun - others arranged on plant stands according to the amount of light needed. Mounted ones hang in small trees. I've found the most success in growing, not just what I like, but what fits the conditions I can provide. I'm a novice at growing orchids, but you can always find a nice one that will fit in most any of our conditions in Baton Rouge or the surrounding area.
Discussion about interest and issues with orchids.