I had missed this. August CPI summary was released on Friday. From Bloomberg News
The cost of living in the U.S. climbed in August by the most in more than three years, reflecting a surge in fuel costs.
The 0.6 increase in the consumer-price index was the biggest since June 2009 and followed no change in the previous month
The core index (which excludes food and energy) increased 0.1 percent in August which was less than expected. So this won't concern the Fed.
Just one more month, and we'll know the next I Bond inflation rate.