To Run or Not To Run

That is the question. Seroogy's Valentine's 15K is fast approaching. I really need to decide if I want to run it this year. I ran the 5K a couple of years ago and it wasn't too bad with temperatures in the mid 40s. Of course, this being Wisconsin, you never know what the weather has in store for the second weekend in February. I'd hate to register and not run because it's too cold, but part of me just says "Suck it up!" and register. What to do, what to do. . .