Just recently started biking and have decided to give commuting a try. First few days of commuting were last week. On my way home yesterday it was about 98 degrees according to my iphone. It was pretty rough. Next week it's going to be from about 105 and 108 for the hights, which may be too much for me for the rest of the summer. I'm going to keep with it as long as I can though. Once it gets over about 110, which should be soon here in the valley of the sun, it's pretty miserable, no matter how dry it is.