**Persistent cloud cover, high humidity, and widespread showers or thunderstorms are the main drivers keeping overnight minimum temperatures elevated in Taipei for September 3.** Official Central Weather Administration guidance and multiple global models (including ECMWF and GFS runs) indicate a daily minimum in the 24–27°C range, with many forecasts clustering around 25–26°C due to reduced radiative cooling under overcast skies and easterly flow. This setup aligns with early-September climatology modified by active monsoon or frontal influences, where rain and cloud suppress the typical nocturnal drop below 23–24°C. Recent model consensus has stabilized on this range without major shifts in the last 24–48 hours, though timing of heaviest precipitation introduces some spread between 24°C and 28°C outcomes. Traders appear to weight the 26°C bin most heavily, reflecting the balance of current guidance while acknowledging forecast uncertainty around exact clearing or intensification timing.