Traders see the highest temperature in Seoul on July 5 clustering tightly around 27–29 °C because current model consensus and recent observations point to typical early-July monsoon conditions rather than extremes. High humidity, frequent cloud cover, and scattered showers—driven by the East Asian summer monsoon—limit daytime heating, while light southerly winds and urban heat-island effects in the Seoul basin keep maxima near the 28–30 °C historical average. Small differences among leading outcomes hinge on forecast details such as exact timing of any rain bands, afternoon insolation, and boundary-layer mixing, which can shift the daily peak by 1–2 °C. New Korea Meteorological Administration and ensemble model runs expected in the next 24–48 hours will likely refine these probabilities ahead of resolution.