Assos Spring Summer full finger, great glove. Doesn't get colder than 10C here in Winter, hence the lightweight recommendation.
At 10C, I'm still wearing my summer gloves. Even at 9C when riding CF levers and bar. And another 1 or 2 C below that if already thoroughly warmed up. But to each his own.
****Oh man did I realize people are different with respect to cold tolerance this morning... Our team ride this morning was wet, cold and miserable with temps under 38 degrees F and windy.. Just rain, wind, and cold air. I was wearing neoprene boots, over some long wool socks, with my tights over the boots to keep water from getting in, and I brought my fancy Descente gloves which have long wrist cuffs, are windproof, water resistant, and full fingered with this cover built in to make them into mittens (pretty cool actually!) if you want.. I had a full gore-tex jacket, poly pro tights with knee warmers and a helmet cover. I was ok after warming up but had no need to take anything off as it was just pouring rain and cold..
Anyway, most of us were freezing even with all of this type clothing on. However, one guy who sometimes rides with us was wearing a cheap windbreaker over a regular short sleeve jersey, summer riding shorts, lycra booties, and gardening gloves with flowers on them - just cheap cotton gloves dipped in rubbery goo on one side. He was soaked to the bone and seemingly happy just with what he had on... Just looking at that guy made me cold.
I was really glad to get home and take a hot shower. For all I know the gardening glove guy went ice fishing or something...