Probably almost killed myself yesterday... 31.1 miles in the heat and humidity of Dallas. I started out my morning ride when it was only about 92 F. I got home and promptly slept for about 2 hours. I woke up and it was 103 F outside with the same 70+% humidity I felt in the morning.
I got 3 miles from home when the lightening kicked in. So I went back. That's the first turnback I've ever done. Fast flashes of lightening are too much for me. But I got 70 miles in on Sunday and 40 yesterday, so I'm good so far for the week.