private void appendForecastTemperature(SimpleWeatherCondition condition, JSONObject json)
     throws JSONException {
   WeatherParser parser = new ForecastWeatherParser(json);
   AppendableTemperature existedTemp = (AppendableTemperature) condition.getTemperature();
   SimpleTemperature newTemp = parser.parseTemperature();
   existedTemp.append(newTemp);
 }