It's been in the mid 40's day and night here, so it's easier on the logistics end, but it's funny, I've found what works best lately is to wear my suit and tie, button the suit, tuck my pant cuffs into my doubled up socks, and go. I don't get cold or sweaty. Before I didn't tuck my pants into my socks, my shins and knees would get cold because the wind would fly in there, now I'm pretty happy. Pretty soon I'm going to be putting my wind jacket on instead of the suit, and then when it's even colder, over the suit.