How sensitive are they to a spike like this during lockdown? We had 7 left out of an original 12 (4 were clear at day 18 and one dead at black eye stage). My kids are counting down the hours until they hatch and it's going to be so disappointing for them if I have fried their chicks!
Our problem is that it is about 35c outside right now so the incubator just can't cool itself enough in the middle of the day.
I added some tap water to the water trays and took the lid off for about 30 seconds to let the temp in the incubator drop. It has been holding steady at 37.5 ever since. Will they still hatch, do you think?