We were in the Montgomery, Alabama area the last couple weeks and diesel was running around $3.30 a gallon (a couple places dropped into the upper $3.20's just before we left).
Currently in the Chattanooga area. West side of town diesel is running in the $3.40's while the east side has it in the $3.10's. I'll be sure to fill up at the Murphy Oil that is showing $3.12. (All prices taken from Gas Buddy).