August CPI keeps Fed hike bets elevated

U.S. consumer prices continued to climb in August 2026, with the headline consumer price index rising 0.4% from the prior month. Over the past 12 months, headline CPI stood 3.4% higher, underscoring that overall inflation remains above the Federal Reserve’s long-run goal.

Core CPI, which excludes volatile food and energy categories, rose 0.3% in August. Measured over the previous year, core prices increased 2.4%, indicating that underlying price pressures are running lower than the headline figure but remain positive.

The gap between the 3.4% annual headline rate and the 2.4% core rate highlights the impact of food and energy costs on overall inflation. While the detailed category breakdown is not fully specified in the available data, the divergence suggests that price movements in those excluded components are contributing to the higher headline reading.

Core inflation is closely watched as a gauge of more persistent trends, since food and energy can be subject to short-term swings. The latest numbers show that, although core inflation is lower than the headline rate, it is still rising on both a monthly and annual basis.

The August CPI release is the final major inflation report before the Federal Reserve convenes its policy meeting next week. That meeting will conclude with a decision on the central bank’s key interest rate, making this data a central input into the deliberations.

In response to the August figures, traders in interest rate futures markets increased their expectations of further monetary tightening. After the data, pricing in those markets reflected roughly a 90% probability that the Fed will raise its benchmark rate by 25 basis points at next week’s meeting.

The combination of a 0.4% monthly rise in headline prices and a 0.3% gain in core prices reinforces views that inflation, while below previous peaks, has not slowed enough to remove the possibility of additional rate increases. Market participants are positioning for the Fed to respond to this backdrop with at least one more quarter-point move.

With the latest report in hand, investors and policymakers will be watching how inflation evolves beyond August. The current readings show price growth that is still above levels consistent with the Fed’s inflation objectives, particularly on the headline measure.

The outcome of next week’s meeting will determine whether the central bank follows through on the rate hike now heavily priced into markets. The August CPI data, as the last key input before that decision, has therefore played a significant role in shaping expectations for near-term U.S. monetary policy.