I ran the marathon and didn't think the temps were hot or the least bit warm at anytime on the course. On the decent, I ran through cool temps and rain from No Name to the finish. I live and train in Oklahoma and often ran in temps of 90+ with equal amounts of humidity. It' all relative to where one lives I guess. I get all the heat/humidity with no elevation.
By the way, I CANNOT wait until next year. PPA & PPM is the best race in America, has the best volunteers, and is the BEST well organized race I've ever ran. Kudos to all involved.