I'm about halfway between Chicago and St. Louis. Our summer here has been a bit on the mild side. But lately we've been getting plenty of upper 80s. Mostly the humidity has been lower than normal. Often below 50%. So I've no business complaining. Plus my commute rides always happen when the Sun is low. 10 hour workdays have some advantages.

But I'll ride in, say, 103 degrees without even giving it much thought. Because it's all the same. If the temp is above about 70, then I'm going to be hot and sweaty no matter what I do. For that matter, when I'm in proper riding clothes I'm about as comfortable as I can be. It's a lot better than work clothes or street clothes.

But I'm one of those people who pretty much hates everything about summer. I plod on through it. I don't let it interfere with riding and I force myself to do the other things that I must do. I'm much more happy, especially when bicycling, in the winter. (Just not too much snow and ice, please)