Put my mind at ease

I have spent countless hours ensuring my babies are all well taken care of and don't get cold, always have food/water, and a clean environment, etc, and today I'm pretty upset with my hubby (though he doesn't know it, didn't want to make him feel bad). He didn't know that the 4 week olds still need to stay warm and he put them in the run while I was gone. Turn out they were in cloudy, 60 degree weather for close to 2 hours with no food or water, just grass to forage through. I was flabbergasted when I got home when he said they'd be out for a couple hours and immediately put them back in the coop with their light, food, and water, but I just need assurance that even though they were without those things for 2 hours they should still be fine? They were quite happy to be returned to their food and water to say the least! I'm most worried about my little runty chickie who doesn't have any feathers at all yet except her wings, even though she's 4.5 weeks old. Should I expect anything to come of this little incident?

I actually don't think s/he's just a late bloomer, I think there's truly something wrong with her. She's the size of a one week old and she is 4.5 weeks old. I already know we have a rooster or two and we'll be getting rid of them whenever they start crowing or become a nuisance. I think after I let the girls get a good rest in the coop and after the sun comes back out this afternoon I'll bring them out again, but I was so worried they would get too cold or have some internal problems being away from food and water that long during the daytime. Glad to hear they're likely fine! Thanks