Cold . . . buncha wimps!! I understand that eastern Canada is not so toasty these days either.
If you're without a vehicle, the best place probably is the observation deck in the terminal. It's pretty high, you can see the whole airfield, and and you're right above most of the gates.
A good second choice, if you're at least a little mobile, is the Western Canada Aviation Museum. They have an observation deck that looks out onto the southern half of the field. Can't really see the terminal, but if 31's active, it's a pretty good spot. Down side - they'll charge you five bucks to get in, and there's not even a cafe. Mind you, the museum is worth it if you've got an hour or two to spare.
Edit - Both of these are indoors.
[Edited 2004-12-23 06:34:18]
The primary function of the design engineer is to make things difficult for the manufacturer and impossible for the AME.