When an outdoor cat showed up here and started using our garage as shelter, I was glad to see him come in out the cold, but I still worried. Temperatures have been insanely cold (-30s at night quite often). Here is what I am learning in caring for a feral cat. Read the article here:

http://www.catster.com/lifestyle/feral-cat-cold-climate

 

Black cat in snow — commons.wikimedia.org