Skyguy9999 on 7/3/2011 5:40:34 AM:
Missouri weather is generally cold in late November. As it was said, the average is about 44 degrees, that goes higher and goes lower. On the day I went in that month, the low temperature was about 38 with a high of about 50, and that was one of the better days. I didn't have to be as bundled up that day as I would have some others, but cold weather riding is still something that needs getting used to and will be a stressor on those that aren't used to it.
There's also the potential of cold rain, snow, and ice. Indeed, the state facilities will not be available (they close Nov 1. and open Apr 1) and most of the seasonal businesses will be closed as well.
Then if you're from the Austin in Texas, remember that plants tend to go dormant (as well as a lot of the wild life) when the temperatures get around freezing for a good while, so you will see a lot different Katy trail in November than you would see in the warmer months. I have a picture that is roughly equivalent to the one on the front page (same general location) that looks much different for the differences in plants and the general effect cold has on things.
For planning a time, you would probably have luck considering what you are willing to see, what your goals are for the trip, and what the group (overall) is willing to endure. I definitely recommend going sometime, though.