Forecast models from agencies including Taiwan's Central Weather Administration show unsettled conditions with widespread cloud cover, showers, and thunderstorms expected to limit daytime heating in Taipei on September 5. Official guidance projects a high of 27–32°C under these conditions, while other numerical models range from 28–33°C depending on the timing and intensity of precipitation. Persistent moisture and variable winds from the northwest are the main factors capping peak temperatures near seasonal norms rather than allowing stronger solar heating. Updated model runs and official briefings over the next 48 hours will refine the exact maximum, which aligns with the tight clustering of market-implied probabilities across the 28–32°C range.