Horses running across the streets in a dream represent a destructive rain or devastating floods.... (Horse)
Hearing the sound of hoofs running through the streets in his dream means rain or floods.... (Hoof 2)
Your dream mainly consists of these symbols: running, in, the, rain. For deeper and better understanding it's recommended to read the individual meanings of each symbol. To find out what other interpretations, that are based on distinct character's symbolism, the dream about running in the rain have, click on these links: running, in, the, rain, or you can search manually by using synonyms of these words.