You're in Alabama... Yeah, outdoor temps during the day are high enough to hatch an egg
Could just leave them in the nestbox (kidding, night temps are too low). Humidity is one of those things we always have here. My momma chicken hatched six chicks out of six eggs only two weeks ago, I didn't see her dehumidify the nest... A/C indoors will lower the humidity though.
Overall, I wouldn't worry too much. Eggs that are fussed with least seem to be the ones that hatch the best (aside from needed turning).