Updated 12.28.22 @ 6:45a
The past 7 days have featured temperatures running anywhere from 10° to 25° colder than average from the Ohio Valley into the upper Mid West.
As a whole, temperatures are running anywhere from 2° to 10° below normal for the month across the region. Officially, Indianapolis is running 2.3° below normal.
The upcoming 7-days will feature a major flip to close December and open January. Note the significant eastern ridge. This will help power temperatures into the 50s for highs into the middle of next week, with a couple 60°+ days possible.
The pattern is also going to turn quite wet as the mean storm track pulls to the northwest. Multiple low pressure systems will be able to tap into that Gulf connection, leading to periods of moderate to heavy rain at times into the middle of next week.