18F (9F Wind Chill) with dusting of snow on the the asphalt trail. I'm wearing my Vibram Fivefinger KSO's with an Injinji Outdoor Series Tetrasok (Nuwool) as a liner sock. I ran 6.5 miles in just under an hour. Overall the run felt great, but my toes did get a little chilly. Not uncomfortable, but I think if it got too much colder, it would be uncomfortable.
Overall, I feel pretty good about my layering system for clothes and here is what I am wearing:
Icebreaker Bodyfit 200 Crew L/S
Gramicci Kinetic S/S
Icebreaker Bodyfit 260 Zip L/S
Montane Featherlite Velo Windshirt
Smartwool Synergy Softshell Pants
I did end up shedding the Windshirt about 2/3rds of the way through and probably should have sooner as it was lined with sweat.
News: I have a pair of Feelmax Kuuva Boots on order and am expecting them in the next couple days. I can't wait to give them a try and compare them to the KSO's.