A bit brisk this morning. Thermometer at the house said 52F, so I went with short sleeves. Then I saw 42 on the bike's thermometer for a little while, and it was in the upper 40s the rest of the time. My forearms were feeling the chill.
I was in a 3-commuter group for about a half mile. I was last. The guy in front of me bailed out, so I just rode with the first guy all the way in. ~16MPH or so. Saw some other riders going the other way, too. I thought the cooler weather had chased them all away last week, but maybe not.