After a turbulent spring, investors will be watching this latest Fed meeting to see if Chair Jerome Powell will offer any hints about whether the worst has passed or is yet to come.

From credit cards and mortgages to auto loans and savings accounts, all sorts of consumer borrowing costs may be impacted by the Fed's decision on rates.

After a turbulent spring, investors will be watching this latest Fed meeting to see if Chair Jerome Powell will offer any hints about whether the worst has passed or is yet to…