Greetings All,

I am hoping there are some here who can give me a good idea of what I'm getting into. So far, I have had a kilt for 4 days and a few hours, and have worn nothing else. Yesterday, however, was the occasion of a BBQ, with the weather hovering around 7 degrees Celcius. While not cold, I was on the edge of becoming uncomfortable.
I was wearing a 5 yard 16oz kilt, and now know that this particular model is NOT going to be acceptable for use on any but the warmest winter days here in Montreal. While I know that a full 8 yard model would indeed be warmer, I wonder by how much? Should I be looking into even heavier weights?
Let's keep in mind that I won't be doing anything exciting in Winter, mostly walking down badly cleared sidewalks (when they are cleared at all). The types of offices I work in are normally underheated in winter, too, so I'm not overly worried about overheating indoors because of a heavier weight kilt.
Also, how much effect is putting on much warmer jacket going to have; does it compensate at all for the fact that the legs are more exposed? As in, does wearing a really warm coat allow me to get away with wearing slightly less warm lower-body garb?
I'm very used to Canadian winters, but not at all used to them wearing anything but pants, and somedays long johns, too!