Whats going to a footy match like? (1st time)?

I've never been before and I am going tonight. It's winter and my parents keep telling me to rug up really really really warmly, they are going overboard..will it really be THAT cold!? And also, whats the atmosphere like? I'm not much of a fan of footy at all really, but my parents are dragging me along. Will I enjoy it?