**Current forecasts from sources including the Japan Meteorological Agency and international models indicate a minimum temperature of 20°C in Tokyo on October 14, 2026, driven by mild autumn conditions with light northerly winds, partly cloudy skies, and residual warmth from an unusually warm October averaging 21.1°C.** Hourly observations show overnight lows stabilizing near this threshold after daytime highs reached 25–27°C, consistent with seasonal patterns where early October lows typically range 15–18°C but have trended higher amid above-average sea surface temperatures and weak frontal activity. Trader consensus at 100% for exactly 20°C reflects high confidence in official station readings aligning with this value. Realistic challenges include a sharper-than-expected nocturnal radiative cooling under clearer skies or minor model revisions from updated pressure gradients, though current data show low variability in the 19–21°C range.