Hi Rafferty,
You could always have indoor guinea pigs. My husband and I had 3 guineas pigs for well over 5 years and they lived a long happy life. They were always perfectly warm and we had a run outside for them for exercise.
You will also get to see and speak to your pigs more often inside. They get used to you being around and ours learnt that when they heard us coming downstairs in the morning, they knew it was breakfast time and gave a little squeak.
You will have many happy years with guinea pigs!
Places like Pets At Home have lots of cage sizes - specially for guinea pigs and similar small sized pets.