Official measurements from the Japan Meteorological Agency confirm a daily maximum of 25.3°C at the Tokyo station on September 18, aligning with GFS model runs and other forecasts showing an afternoon peak near 25°C under mostly cloudy skies with light rain and northerly winds. This observed value, consistent across nearby sites and real-time monitoring, underpins the market's near-certain consensus on 25°C. Uncertainties such as post-hoc data revisions, station-specific microclimates, or differing resolution thresholds remain possible but improbable given the tight observational agreement and proximity to day's end.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedView resolved

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