Recommendation regarding winter tyres vs. summer tyres

Hello, I’m in the Zwickmühle and don’t know yet how to solve this best. I have to go to Stralsund to the Bundeswehr on Monday (03.09.). That’s about 477km from me that I’m going to drive by car. Now I have the problem that I logically still have the summer tires on it. Well, the winter is almost at the door, will definitely break in when I’m up there and when it’s so far I don’t have the money to drive home by car. and back up again to make winter tires because you don’t get any more miles of money for the rides at home on the weekends but train tickets. What would you recommend me? Now already make winter tires on it even though it is very early and with it drive up? And if now gets really hot again from Monday? mfg