Brooding hen and hot weather

[ssbs]

I've got a broody red sexlink that I just set 5 eggs under yesterday and I was just reading that over the next couple days we're going to have highs around 90.. The hen is in a small 4'x4' coop, nesting in a milk crate. Is the hot weather going to hurt her or the eggs?

 

[ChickenLegs13]

It will be ok as long as the little coop is ventilated and not like an oven inside. I set hens in the middle of the summer when it's 105* and the poor hens just stand in the nest and pant but they do their duty.