We don't have synonyms for vedder yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are bedder, vender and edder.
(n) :
Pronunciation spelling of weather. [The short term state of the atmosphere at a specific time and place, including the temperature, relative humidity, cloud cover, precipitation, wind, etc.]
(n) :
Pronunciation spelling of weather. [The short term state of the atmosphere at a specific time and place, including the temperature, relative humidity, cloud cover, precipitation, wind, etc.]