Traders see the highest temperature in Chengdu on August 3 centering on 31–33 °C because short-range model consensus and recent observational trends point to typical early-August monsoon conditions over the Sichuan Basin. Frequent afternoon showers and thick cloud cover, driven by the East Asian summer monsoon and lingering subtropical moisture, limit surface heating and cap daytime maxima near the climatological 30–32 °C average. Subtle differences in forecast timing of convective activity, boundary-layer moisture, and any brief breaks in cloudiness can shift the daily high by 1–2 °C, which is why the market assigns nearly equal weight to 32 °C and 33 °C while assigning lower probability to 34 °C or above. Official guidance from agencies such as the China Meteorological Administration will refine these variables in the final 48-hour window, directly influencing resolution.