u could try putting up one of those shade nets dependant on how much attention that would draw(its a net that lets a lil light thru)or u could just find ways of reducing light like putting them under trees same shit u do in the summer time sit in the shade mist self dont give them a cold drink tho the temp dif can cause root sshock
i live in NC too and it has just been blazing. my plants are in my attic so it's even hotter but they've been handling in well. just water so they don't shrivel.