Hahaha! I wish it was 90 here, that would be nice cool weather for us. We've had temps in the upper 90's and low 100's with very high humidity in the 90's too. Walk outside for 5 minutes and you're soaked with sweat, shower time! My chickens are pretty much used to it as it starts early early in the year and continues sometimes into October. I change their water 3 times a day and they either lay under bushes or lay in holes that they dug. Once a week I'll give them chilled watermelon,they love that and eat it down to the skin. I have a small fan rigged up to blow air inside their house to keep the air circulated during the day. I also put ice cubes in their water. My chickens pant and spread their wings to keep cool as well.