Recent Japan Meteorological Agency forecasts point to minimum temperatures in Tokyo on July 24 clustering in the mid-to-upper 20s Celsius, driven by persistent warm, humid air masses under a subtropical high and limited overnight radiative cooling from increasing cloud cover and scattered showers. These conditions suppress typical nocturnal temperature drops, pushing outcomes above the long-term July average low near 23–24°C. Urban heat island effects and high humidity further moderate cooling rates, creating tight spreads between 25°C and 28°C resolutions. Model consensus remains fluid with shower timing and cloud thickness as key variables; fresh JMA updates and ensemble runs over the next 48 hours will refine the precise overnight minimum before market resolution.