Yeah, I took a brisk 25 minute ride today at 38 degrees F. I wore regular summer gloves because that's the only type of motorcycle gloves I currently own. It was a lot of fun for the first 15 minutes but by the end my fingers were sold darn cold they actually hurt!
Since spring is a long way off maybe I need to consider some winter M/C gloves, or just try the ones I use while running the snowblower. When I was a kid I rode dirt bikes in foot-deep snow and I don't remember having this problem. I guess I really am getting old.