Recent observational data and short-term ensemble forecasts from the Pakistan Meteorological Department indicate afternoon maxima in Karachi on June 6 are most likely to peak near 35–37 °C, consistent with the market’s strong clustering around 36 °C. Early-June insolation combined with delayed southwest monsoon onset sustains elevated thermal conditions above the 33–36 °C climatological baseline, while coastal humidity and potential afternoon cloud cover introduce modest downward pressure on the daily high. Recent station readings of 36–38 °C on June 2–3 reinforce this narrow range, with model guidance showing limited spread and resolution hinging on the precise official maximum recorded by local stations.