Temps tend to be more mild here. 70's and 80's in the summer.

I have ridden in 100+ temperatures a couple of times. It isn't too bad as long as one keeps moving. Make sure one brings lots of water.

I hit upper 90's and low 100's for a 150 to 190 mile ride a few years ago. Whew, it was HOT midway through the ride, and I was drinking every drop of water I could get. Fortunately it cooled down somewhat even by late afternoon, and into early evening.