Wages are also rising but people aren't spending as much.

The latest Personal Consumption Expenditures index, or PCE, will be released Friday. Experts say there are other clues the Fed is looking for, too.

These measures of inflation track the prices consumers pay and the prices producers receive for their wares. But they don’t always line up.

Rising costs for prescriptions and hospital services were felt in latest PCE report, though health inflation has been mild in the past year.

The consumer price index and the personal consumption expenditures price index measure the changing cost of different baskets of goods.