Not going today, but as a veteran ass freezer-offer, I usually wear:
Tucked in t-shirt (can't have cold wind blowing up your back)
earmuffs/hood (I usually wear a Sox cap so I don't use a winter hat)
jeans/regular socks, gym shoes, no long johns.
I got one of the worst sunburns of my life at a cold Sox game; so even though it's cold cover the face or wear sunscreen.