It's an open porch, second floor, but I'm sure I can rig something up to give them a little shelter. This is Western NY, though, and getting into the 90's requires a bit of effort. Our average daily high at the peak of summer is 81 F, so most of our summer is between the mid-70's and mid-80's.
Now it's 3 Ibicellas and 3 Proboscidea... and zero Martynia's!
What confuses me about Larry's advice is that he recommends lots of water. Aren't they desert Southwest plants? What fertilizer does one use? Why the ground? Insulation?