I'm in Utah and had a good 20-hour power loss during the winter about 4 years ago. My house dropped to about 63 and I was stumped. Anyway, I was worried about my Sulcata Tortoise (I had no snakes at the time). I was able to put him in a small dog crate and throw him under the covers with me. The heat from my body was more than enough to keep him warm.
A crate wouldn't work with the snake, but maybe an appropriately-sized Critter Keeper? It won't help much during the day, unless your planning on sitting on the couch with a blanket and reading all day. But it'll get you through the night, which is always the scariest and coldest.
This was all before I was married, of course. It'd definitely take some squirming and pleading today
Good luck with the hurricane. I hope you and yours stay safe and everything works out!