Latest meteorological guidance from agencies including the Japan Meteorological Agency indicates a daily maximum near 22°C in Tokyo on October 15, driven by a transition to easterly to northeasterly flow that moderates temperatures after an unusually warm early October with multiple days above 25°C. Ensemble model consensus shows limited afternoon heating under partly cloudy skies, with dew points in the mid-teens Celsius and light winds keeping values from climbing higher. Historical mid-October baselines for the region hover around 20–23°C, supporting the tight clustering of market-implied probabilities around 21–23°C. Official JMA observations, released shortly after local sunset, will determine resolution, with any late-day clearing potentially allowing a brief push toward 23°C.