Clear, lower 50s, no wind.

At the end of my street, a regular (roadie) rode past as I stopped at the stop sign for him. We exchanged hellos. Then the Tour de Commute commenced. I had just started out so I wasn't really warmed up. He gained many yards on me but I had him in sight most of the time. After about a mile I started pulling, and about a mile later I was behind him at a respectful distance. He kept turning his head to see where I was.

So we were cruising along, 18-20MPH, for a couple of miles, and he bailed and took a different way in. I saw him next to my building about 5 minutes after I got here. I snapped a blurry iPhone picture as a trophy. (Severely cropped for reasons of privacy.)