Recent forecast models from sources including the Japan Meteorological Agency and extended outlooks show Tokyo highs clustering in the low- to mid-30s Celsius for August 10, with 32–33 °C favored absent significant cloud cover or showers. Scattered late-day thunderstorms noted in several runs could cap afternoon peaks near 31 °C or below on some guidance, while clearer, hotter conditions would support 33 °C or higher. Urban heat-island effects and typical August humidity amplify sensitivity to small changes in insolation and wind. The spread across 30–33 °C outcomes reflects model divergence on precipitation timing and intensity, with traders weighting the most recent runs showing modest cooling potential against historical August baselines around 31–32 °C.