Ohio weather is notoriously unpredictable and volatile in December. Ignore the weather forecast until the 18th. It could very likely change three or four times.
To give you an example, two weeks ago, here in Lake County, Ohio, the forecast three days out was supposed to be lower 50's with a chance for rain. We got an ice storm then three feet of snow and it never got above 28 for four days. Winds took out power for half the area. The snow is now all melted and it was around 60 on Monday. It is now back to the 20's., and all the rain we got yesterday turned the roads into an ice rink.