The cityscape comes alive when the roads are wet and reflective. Most cameras can take a little drizzle and it is the best time for night photography. You can take shelter but some raindrops will still get onto your glass when you point it upwards. Use a UV filter and stand by a tissue or cloth to dab at intervals.
During the rain tonight, I chose the Panasonic 7-14mm lens so as to take in the Twin Towers from close range. The ultrawide lens has a very big front element and no filter thread. As such, I didn’t want to wipe the bare glass as much. I just worked the droplets into the scene for added realism.