Question: Cats

as many of you know i have two adorable cats - Albus and Minerva. they are currently living with my parents up in duluth in a kennel that chris and i (mainly chris) built. soon (december 1st to be exact) chris and i move into an apartment that allows pets and then i can have my babies back :) until then....

the kennel is located in the garage - not one that is attatched to the house and one that is not heated. the cats cannot be brought into the house for health (allergy) reasons and i'm worried.

the northland can get pretty darn cold into october and november and i'm worried about the cats being out there! my mother insists that they'll be just fine - that they are inside the garage and not outside. i say the garage is at maybe 1 degree warmer than the outside temp and that if forced to stay outside until december 1st they'll turn into catsicles!

am i wrong? will they be fine? ideas?