Well, I wimped out and feel a little embarrassed about it. I did ride today, but I altered my destinations significantly.
Woke up to discover that it was -5F. The forecast said it was only supposed to be -2F. I also discovered that the city decided not to plow the roads after the 2-3" of snow we received yesterday (probably because we're expecting more snow this week and they're trying to save money.)
I was supposed to ride 8 miles to our office for a meeting, then ride 8 miles to a client's location. Given the low temp and the fact that I was going to be going slow through unplowed snow I conceded and rode directly to the client, which was only 4 miles. It wasn't imperative that I attend the meeting at our office so it wasn't a big deal to skip it.
Once I got to the client's location I decided that the ride was a lot easier than I anticipated. The cold wasn't as cold as I thought it would feel, and the snow slowed me a less than I expected. I could have made it the 8 miles to our office without any trouble. How embarrassing.