As usual retro has no idea what he is talking about..
You have a thing called a training cycle, you want to peak around the time of a fight. Most pro fighters do not train 365, at least not in this way.
I'd stick to a 5 day schedule, keep in mind boxing is core and leg heavy exercises, as well as cardio.
But wanting to work as much boxing with weights I can understand trying a 6 day rotation.
I'd go Mon, Wed, Fri. Weights. (Mon, Wed, upper days, Friday lower.)
Tues, Thurs, Sat: Boxing (with Cardio in the morning, boxing in the evening.)
Sunday rest.
This will give your legs two days off to rest, which in your routine are taking the bulk of the work. In reality for boxing and fighting, the roadwork, footwork exercises, and activity itself gives you everything you need for your legs, no real time weight wise is needed to work on your legs.
Your body needs time to repair your muscles, if you are just starting then this needs to be WAY revised.
Mon, Wed, Weights. (all upper, different muscle groups)
Tues, Thurs: Boxing
Friday: Cardio.
Saturday, Sunday: Rest.
That schedule is more than realistic even if you want to fight, as you build to a fight this is a typical work week. As you progress through your cycle, Saturday would be a day you do sparring, you would pick up morning cardio sessions.
As you got closer to the fight, you begin to go lighter on the weights, heavier on the boxing and sparring.
Two weeks out you are essentially training 4 or 5 days just on timing, light sparring and speed, with cardio sessions. By fight time you are ready to go.
But asw far as just looking to get ready for a couple of months...
I would start with a 5 day program for 6 weeks, move into the 6 day program after that.
This would be just a general idea.
Ideally every 6 weeks you change your training routine to keep your body in shock and acheiving the most gains...
Example.
1st 6 weeks.
5 day program, with our Monday and Wednesdays being upper body weight stuff...
2nd 6 weeks:
6 day program with your weight days being strictly plyometrics and bodyweight exercises, the 6th day is just for sparring.
3rd six weeks, do superset weight routines, Olympic Circuits, full body workouts...
You can constantly switch it up and go through a good training cycle.
I can tell if you if are looking for boxing, or fighting you are far better off spending the majority of time doing cardio conditioning then weight training, even your weight training should have cardio elements to it... (hence supersets, and circuit routines, where you can keep your heartrate elevated).
That is what I do with my guys, and pretty much the standard formula through every combat sport, be it wrestling, boxing, MMA, etc.