I'm entered too, and also a little concerned about the weather. However, not starting is not an option, I'd much rather start then DNF than not bother, though I would expect to have suffered significantly before DNF'ing, ie, I want to see blood.
Also, I really want the Pendle on my palmares.
Seriously though, the issues with wet weather for me are all at night, when temperatures drop and a lack of anywhere to abandon too, such as a train station, or warm place, disappear. So I will make my choices towards the evening. It is supposed to be fun after all.
See you all on the start line!
Joel