**Official forecasts from the Hong Kong Observatory and supporting models point to a highest temperature of 30°C on August 31, amid a broad low-pressure trough driving unsettled conditions across Guangdong and the northern South China Sea.** This setup favors mainly cloudy skies with occasional showers and squally thunderstorms, producing a high probability of significant rainfall that limits daytime heating through reduced solar insolation and evaporative cooling. Humidity levels of 75–95% further moderate peaks, while shifting easterly to northeasterly winds (force 3–5, occasionally higher offshore) introduce slightly cooler maritime air compared to recent westerly flow. Consensus across HKO, regional models, and international outlooks centers on a daytime maximum near 30°C (range typically 26–30°C), with 29–31°C outcomes plausible depending on shower timing and intensity—factors that create the current tight market spread between 29°C and 30°C. Historical late-August baselines in Hong Kong under similar trough patterns align with these values, underscoring the role of convective activity in capping temperatures below recent very hot conditions. Updated model runs and HKO briefings over the next 48 hours will refine the exact peak.