I rode Sunday afternoon (3pm-on purpose). It was 97 degrees, who knows what the heat index was. I typically go for the trifecta on my training rides, heat, humidity and hills (no mountains, but plenty of hills). I'm training for Hotter N Hell Hundred this year again. Last year we totally lucked out cuz it rained that morning and the unbearable heat held out until later in the afternoon, of course I was still out there. One can always hope for a repeat, but not likely. So I will continue the training trifecta in hopes of finishing 100 miles on August 27th.
p.s. lots of sunscreen-reapply often!!!