Well, V2's are designed to work better in more moderate weather conditions better than V1's for example, but there are several other factors besides just ambient temp that are going to dictate how well your tires are going to work for you this weekend.
Some of these factors are other weather factors such as wind and and sunny vs overcast conditions. Light wind with sunny conditions make a HUGE difference over sustained heavy winds and overcast conditions. I don't think I need to tell you which one is preferred when the thermometer reads 50 F.
Another factor that heavily influences how your tires will perform in colder conditions is how often your car will be on course. If the heat sizes are small, and things are running smoothly, and you're getting the car back on course every 10 minutes or so, then you might be just fine as a single driver, especially if you use tire blankets to help retain heat in the tire. If you are in a large heat with a lot of drivers however, and single drivers are waiting 20+ minutes to get their cars back on course then that might be a problem. This is why you'll see so many more co-driven cars when the mercury begins to drop.
So as you can see the answer to your question is more complicated than a simple yes or no. A lot of it really depends on how well prepared you are going into the event and what you are willing to do (ie: invest in tire blankets, arrange co-drive ect ect).