Latest JMA and ensemble forecasts point to a Tokyo minimum near 18°C on October 13 under a stable high-pressure regime, with light northerly winds and partly cloudy skies limiting radiative cooling after daytime highs around 25–26°C. Recent model runs show modest spread in boundary-layer moisture and cloud timing, which can shift the overnight low by 1°C, supporting the tight clustering of market-implied odds around 18–20°C. Warmer-than-normal October conditions, with recent minima in the mid-to-upper teens, provide additional context for trader expectations ahead of final hourly observations.
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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