Accept that you are going to get wet.
Remember that everything painted on the road gets slick, more so when it first starts.
Think about driving a car in the rain, you don't see as well, KEEP THIS IN MIND! The cars won't see you on the bike as well.
Other than that, go for it.
I enjoy riding in the summer rains, it's zen like. It cools me off.
Just be EXTRA careful, and make sure to wipe down your bike and drive train.
ALSO; Beware of the lighting that comes with those fl afternoon showers.
rain= ok... lighting= NO GOOD!