I remember it being really hot last year and having no rain, but maybe it rained on Thurday or Sunday when I wasn't there. lol.
Foxy's idea is the only one I can think of. There aren't many opportunities for uncrowded indoor/out of the rain spaces for photoshoots.
I could do two photoshoots on Saturday, or one on Friday and the one at 1 pm on Saturday. Either way works for me, but I'd have to know before tomorrow morning so I'd know whether to wear my White cosplay tomorrow or save it for Saturday morning.