Does your school have a bulletin board? Maybe someone else is in dire need of a roommate? You could always get lucky.
With your roommate situation, maybe you could show them what you're doing to get out of there and get more time?
They probably legally *can't* make you move out if you have nowhere to go. Legally, they would probably have to go through the whole procedure of going to court to evict you---which includes that they legally can't throw your stuff out without becoming liable for damages, can't lock you out, etc.
If they call the cops to get you out, the cops will probably tell them that they *can't* just kick you out with noplace to go, that they *have to* actually go to court to evict you.
DISCLAIMER: Call legal aid or a homeless advocacy group and get specific advice on the laws where you are. I am not a lawyer, this is not specific legal advice.
Making them evict you will make them hate you, but it may tide you over a few extra days or weeks while you find someplace else to live. But it might make other potential roommates leery of you, too. Your choice.
Camping, snow or not, probably is your second best bet.
Timoclea