I fly without wings, I cry without eyes. What am I?

Why this works

This riddle cleverly plays with the characteristics of clouds. The phrase "I fly without wings" refers to how clouds drift through the sky, seemingly flying, but they obviously do not have wings like birds. Meanwhile, "I cry without eyes" describes how clouds produce rain; they release water droplets as if they are crying, yet they don't have eyes like living creatures. This dual imagery creates a whimsical way to describe the nature of clouds!