September 2026 CPI data, scheduled for release October 14, features market-implied odds clustered tightly between 3.6% and 3.7% year-over-year, reflecting uncertainty over energy price impacts. Higher gasoline costs, which approached multi-month highs amid Middle East developments, are expected to lift the headline print to around 3.6% consensus from August's 3.4%, while core CPI moderates toward 2.5% on softer shelter and services trends. This divergence underscores contained underlying pressures despite the headline boost, with traders weighing the report's implications for the Federal Reserve's October 28 policy decision against recent labor market softening. The close probabilities highlight how small deviations in energy or shelter components could determine the final outcome.