Japan Meteorological Agency forecasts for June 24 indicate mostly cloudy conditions across Tokyo, anchoring trader sentiment around minimum temperatures of 19–20 °C as the leading outcomes. Persistent low-level moisture and cloud cover during the early phase of the tsuyu rainy season limit nocturnal radiative cooling, narrowing the diurnal temperature range and supporting overnight lows near the seasonal average of 19–21 °C. Model consensus shows light winds and high humidity further moderating extremes, while urban heat island effects in central Tokyo add slight upward bias compared with suburban stations. Upcoming JMA updates and any shifts in cloud thickness or frontal passage remain the key variables that could differentiate these closely matched probabilities.