Design pattern to convert a class to another [closed]

In that case I’d use a Mapper class with a bunch of static methods:

public final class Mapper {

   public static GoogleWeather from(CustomWeather customWeather) {
      GoogleWeather weather = new GoogleWeather();
      // set the properties based on customWeather
      return weather;
   }

   public static CustomWeather from(GoogleWeather googleWeather) {
      CustomWeather weather = new CustomWeather();
      // set the properties based on googleWeather
      return weather;
   }
}

So you don’t have dependencies between the classes.

Sample usage:

CustomWeather weather = Mapper.from(getGoogleWeather());