Highs over the next 7 days (and longer) are expected to top out in only the 30's for highs. If you think 30's for highs aren't extreme for November you're right. What is different this time will be the length of the cool down and how wide reaching it will be.
Lows over the next week will drop as low as freezing as far south as northern Mexico and the Gulf Coast.
So, how rare is that for mid-November? Try once a century. Only once, in 1937, has Toledo recorded highs at or below 37 degrees for a week straight.
YEAR NOV DAY HIGH LOW
Never has that streak lasted more than the 7 days. The next week and a half has a serious chance to be the first.