The cat is missing (5015 Churchill Meadows Boulevard, Миссиссога, ON, Канада)

There is a grey black and white cat that has been roaming around my house for the past 2 days. I'm not sure if its lost or if the owner allows it roam overnight but its getting cold and I've been giving it some cat food + water , however it doesn't appear to have went home for the past few days and I'm wondering if the owner is looking for it.