Rain?
Perfect weather for a MUTANT ride!!!
Find a destination that serves killer coffee, food or beer (or all three)....then plot a course to that place whereby you maximizes the off-road experience (via paths, parks, back alleys, or dirt-road routes) ... then get geared up for foul weather, get at least one buddy, and go have a blast riding it!!!
(Just make sure the off-road routes will stand up to your bike's tires and not create muddy tracks... there are plenty of these routes in Central Jersey where you'd virtually leave no trace).
I find these rides to be among the most gratifying, mainly because you're refusing to succumb to the rain, and refusing to ride just the roads...
It's also the perfect opportunity to pull that old klunker down from the rafters, and slap on a new set of fat slicks... perfect for this kind of riding.
Have fun, and stay thirsy, my friends...
BB