Forecast models from agencies like the Japan Meteorological Agency indicate a likely peak of 33–36°C in Tokyo on July 31, with variability driven by cloud cover, scattered showers, and urban heat island effects that can add 1–2°C to central districts. Recent days have seen highs near 31–34°C under similar summer patterns, while long-term July baselines average around 30–32°C before urban influences. Trader sentiment clusters around 34°C because model runs diverge on afternoon solar heating versus any convective cooling, with resolution hinging on official thermometer readings at designated stations. Updated guidance in the next 48 hours could narrow these probabilities further.