Recent KMA short-range forecasts and ensemble model runs indicate a highest temperature near 30°C for Incheon on August 26, driving the leading 33.5% implied probability, with 29°C close behind at 28% amid model spread on cloud timing and weak frontal influences. Persistent late-summer humidity and residual warm advection from earlier August heatwave conditions support daytime maxima in the 29–32°C range, while 20% precipitation chances introduce variability that could suppress peaks below 30°C or allow brief clearing to push toward 31°C. Trader consensus reflects this narrow uncertainty window two days out, consistent with climatological late-August averages around 31°C but tempered by evolving guidance on boundary-layer mixing and any overnight tropical night effects. Updated model cycles and KMA briefings over the next 24–48 hours will likely refine these probabilities.