It would be completely up to the temperament of your cat whether or not they would accept wearing clothes. In my experience, most cats dislike the sensation of wearing things, but I’ve seen a few “popular” cats on Instagram that regularly wear coats.
If I were going to train my cat, I’d treat it like the harness training I did (be prepared, this may take months):
- In a relaxed state and with treats, a few minutes each day, put the jacket on the cat.
- Always be encouraging, but then don’t leave it on for too long.
- Reward the cat and praise them.
- Let them wear it longer and longer as they start to get comfortable (walking normally, returning to standard activities), until it becomes routine to wear the coat.
A couple important things to note about a jacket — make sure it:
- does not restrict any of your cat’s daily activities (I.e., using the litter box, jumping up a cat tree, curling up to sleep).
- is made of comfortable and safe material.
My house occasionally gets cold, so I keep a pet-safe hot pad out for my cat all the time. Definitely provide your cat with one or more warm space. Consider getting a space heater for the cat’s favorite room, too, if your house is really too cold for your cat.