Fall transition is more than colder air, it's shorter day light hours and signals the bass to migrate to their winter locations. The bass should be following and looking for baitfish and beginning to school up on outside structure. If your lake has shad, then target the shad schools. Crawdads are also migrating to deeper water and make good bite size meals. The key to fall transtion is cover water and targeting the middle to lower 1/3 of the lake in general. You might want to look back over your shoulder and fish deeper water and along the banks on the windward side (down wind) between points, the points and anything along creel channels like humps that hold bass. Crank baits, spinner baits, jigs, soft plastic all work well.
Frontal conditions are a normal season factor that doesn't bother the bass a much as the fisherman.
WRB