Latest numerical weather prediction models from agencies like the China Meteorological Administration point to a June 13 maximum in Chongqing near 27–29 °C, aligning with the market’s tight clustering around those outcomes. Persistent cloud cover, scattered showers, and high humidity typical of early-summer monsoon transitions are limiting daytime heating, while the city’s location in the Sichuan Basin can trap warmth or enhance localized cooling depending on wind patterns. Model spread in precipitation timing and boundary-layer mixing creates the narrow odds between 27 °C and 29 °C, with any break in clouds or delayed rain potentially pushing readings higher. Updated runs ahead of the 13th will be the key catalyst for shifts in trader positioning.