Recent KMA and global model guidance points to daytime maxima in the low-to-mid 30s Celsius for the Seoul-Incheon area on August 3 amid typical late-summer humidity near 70% and light winds. Leading probabilities for 33°C and 34°C reflect ensemble spread in short-range forecasts, where modest differences in cloud cover, boundary-layer mixing, and weak synoptic forcing can shift peak readings by 1–2°C. Marine moderation from the nearby Yellow Sea and urban heat-island effects add local variability, while the absence of strong high-pressure ridging keeps intensification potential limited. Updated model runs and official briefings over the next 48 hours will narrow resolution thresholds tied to official thermometer observations.