Official forecasts from agencies including the Met Office and regional meteorological services converge on a daytime maximum of 29°C for Incheon on September 6, 2026, under clear to partly cloudy conditions with light northeasterly winds and minimal precipitation risk. This alignment of numerical weather prediction outputs and observed afternoon readings near 27–28°C underpins the near-certain market-implied probability for the 29°C threshold. Historical September climatology for the region shows typical highs around 25–27°C, making the current pattern slightly above average yet stable. Resolution depends on the official station maximum; modest forecast uncertainty remains if late-day convection or measurement adjustments occur, though current guidance shows low likelihood of deviation to 32°C or below 29°C.