You're not going to set the lap record in cooler conditions..so don't go bonzai like you will..cold riding's different that when temps are up..just take it easy. ESPECIALLY in the first left of the first lap of each sessions!!!!! The tires, warmers or not, are NOT up to temp..and may not ever get there in those conditions. The track's like a heat sink..as soon as the warmers come off, the heat's bleeding out. Just go out there for the sake of being out there one more time for the season.
Just work to be smoothe..maybe a day to work on refining your body positioning..focus on getting your body off the bike, inside foot pointed into the corner, get your face on the inside/between the fairing the inside handlebar (if your bike had mirrors...pretend like you're looking in the mirror to see how pretty you are and you'll have your head in generally a good position) and your outside arm resting on the tank (Nick and Ken's "Report Card" from YCRS).
Have fun and end the year on a good note.
OH..and MOST IMPORTANT OF ALL!!!!!!!!
In the morning during Tech..riding in the pits..TAKE IT EASY!!!! Nothing abrupt, your tires are cold and the pit roads are cold. WEAR ALL your gear to tech!!!! GLOVES INCLUDED..just in case something squirrely happens on the way to Tech or back. If you forget to wear your gloves and something bad happens..it sucks waiting for your knuckles to heal and your skin to return to your knuckles.
Do NOT ask me how I know about this...(Road Atlanta, December 2009).