I live just north of you by a couple of hours. Built 3 raised beds early last yr, 4.5'x14'.
It was recommended to use cardboard covered by thick newspaper. I have not had ANY weeds come up through the beds. As the newspaper /cardboard breaks down by worm action, the weeds die. You'll love your beds.
If I could figure out how to attach a picture I'll show you.
oh, I did not make mine in the fall, but this time of year, planted quite a few veggies and they came up fine. Even got to overwinter onions.