I generally don't like riding in the rain. Once I'm on the road, I don't mind it there's a brief squall I must pass through to get where I'm going. But I don't make a habit of it. More often than not, I've ended up paying the consequences of getting hypothermia or worse. At other times, problems developed with my bicycle after it was exposed to "a little foreign matter" after commutes in the rain.
For the most part, I avoid commutes in the rain as much as possible.