Recent forecasts from Central Weather Administration and international models indicate a likely overnight low near 22–23°C in Taipei on September 22 under clear to partly cloudy skies and light northeast winds of 5–10 km/h. Radiational cooling overnight will be moderated by moderate humidity near 70–85% and a subtropical maritime air mass, limiting further drops. The tight spread in market-implied odds around 19–23°C reflects minor model differences in boundary-layer mixing and exact timing of the daily minimum, typical for short-range temperature resolution in a coastal urban setting. No significant frontal passages or tropical systems are expected to alter the pattern before resolution.