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My experience is same as @Rodeo747 , @langerking .
It is all about the humidity first. Temperature is relative not primary. People like a certain range of temps. Guitars like the same however they are more picky and react to humidity not temperature. Your metal strings will react to temps but not so much the wood. It is the humidity that will make your wood move. I have hygrometers in rooms where I play and store. I also keep one with me when I travel to see what is going on at any given moment. There are times when conditions are naturally good for leaving guitars out and there are extremes when I keep them cased (humidity controlled in case) until it is time to play.
Did I mention it yet? It is all about the humidity? : )