Au contraire.  It's worse than you can imagine.  When I was 8, I went to the 85 Bears first round playoff game against the Giants at Soldier Field.  It was 30 below that day.  Look at the man I became.  You're fucked.
1)  Thermal insulated long underwear
2)  Layers
3)  Ski mask (this is very important)
4)  Probably a scarf to go around the neck
5)  A ski cap to put on the ski mask
6)  Insulated gloves
7)  Insulated socks x 3 or 4
8)  Ski boots
9)  Thermos full of something hot as hell to sip on
Enjoy the game!