Joe,
Yes, out on the deck railing. Along with several other "fussier" neps. We have never, EVER gotten surpries snows in August....Or even in Sept. For that matter. I do watch the weather channel religiously when there is that danger. I think the latest I would leave them out is Early Oct., depending on the season, for just that reason.
Trent,
With regards to the eymae taking summer heat, I really don't know. I've only had it for maybe 2 or 3 weeks (?). It missed the July heat wave. Nobody else outside minded, though. Even the ephippiata made a new pitcher or two. Granted, this was a mild year, and very few nights stayed above 70, even in July.
I do have a tank on the deck that I will put the more delicate ones in if it seems like the humidity is dropping too much....but I never cover it. I just leave a little water in the bottom to raise the humidty a trifle. It has worked like a charm so far.