Recent model consensus from agencies like Taiwan's Central Weather Administration and international forecasters points to a daytime high near 28–29°C for Taipei on September 17, with partly cloudy to overcast skies, light northeasterly winds, and a chance of drizzle moderating peak heating. High humidity and extensive cloud cover are expected to limit surface warming compared with clearer climatological norms around 29–30°C, while any breaks in cloud or delayed showers could allow brief spikes toward 31–32°C. Model spread in timing and intensity of moisture creates genuine uncertainty across the 27–33°C range, which the closely matched market-implied odds reflect as aggregated trader assessment of these variables. Updated model runs and official briefings over the next 48 hours will likely sharpen the distribution ahead of resolution.