Ya, I imagine they are strong enough to survive that. In the wild the hen may very well be getting soaked, and the humidity would have gone off the rials!
I'm very excited! I'm hoping to get 3 EEs, 3 Dark Brahamas, 3 Cochin bantams, and 3 Serama's once I incubate them after these guys. Then, I'm assuming I'll get 50% roosters, and will have to rehome or cull. I think its really good that I am raising meat birds right now, because its a good to warm me up to raising extra roosters for meat lol! I hope I get mostly hens!