weather weath·er ˈweT͟Hər/ noun 1. the state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, rain, etc. "if the weather's good, we can go for a walk" synonyms: forecast, outlook; More verb 1. wear away or change the appearance or texture of (something) by long exposure to the air. "his skin was weathered almost black by his long outdoor life" synonyms: weather-beaten, worn; More 2. come safely through (a storm).