**Current observations and model consensus strongly support elevated odds for a record 2026–27 El Niño.** As of early October 2026, the conventional weekly Niño 3.4 anomaly reached +3.3°C, while the NOAA Relative Oceanic Niño Index (RONI) stood at +1.7°C for July–September, already placing the event in very strong territory and surpassing prior records for the time of year. NOAA’s Climate Prediction Center October 8 outlook assigns an 83% probability that the October–December RONI exceeds +2.5°C—the threshold for surpassing all events since 1950—rising from earlier estimates, with multi-model ensembles projecting a peak near 3.6–4.1°C in Niño 3.4 by November–December. Subsurface heat content remains exceptionally elevated, and atmospheric indicators including a strongly negative Southern Oscillation Index confirm ongoing intensification. The event is expected to remain strong-to-very strong through at least January–March 2027, with the next CPC update and refined seasonal forecasts providing the key near-term data points for traders.