Glad to hear it's not just me! Yesterday here in Lexington KY we hit 98F, our hottest day of the year, and today we're forcast to be around that again. Two weeks of cooler than average temps, a few days of scortching, then Monday we might not break 70. I did my worst 5k ever this morning, with a 90F temp when I finished at about 9:30 am...

When it's much over 90F, I try to be sensible about riding or running-- everyting is slow, and I try to bring plenty of water and listen to my body. Try to, but don't always follow through!