If the eggs are double boxed and packed well, they should do fine... most of the trucks do have AC... I received eggs this week and we've had triple digit heat index the whole time and they did fine...
Biggest issue is a lot of hens are either taking a break from the heat, molting or gone broody... :/
Biggest issue is a lot of hens are either taking a break from the heat, molting or gone broody... :/