Recent forecast updates from agencies including the Japan Meteorological Agency point to a Tokyo high near 27–29°C on August 29, with scattered showers and increased cloud cover expected to limit daytime heating compared to the seasonal average of about 31°C. Variable steering patterns, moderate northeast winds, and precipitation probabilities around 25–60% introduce uncertainty in peak readings, as earlier or heavier rain would suppress maxima while clearer intervals could allow brief warming. Model consensus remains close across runs, supporting the tight market clustering around 27°C and 28°C implied probabilities as traders weigh timing risks before final observations. Updated JMA guidance and next model cycles will likely refine these odds.