PAGASA forecasts for Metro Manila show a minimum of 24–25°C on August 23 under southwest monsoon influence, with partly cloudy to cloudy skies, isolated rain showers, and highs near 29–30°C. Recent station data record overnight lows of 24.4°C, consistent with typical rainy-season baselines where persistent cloud cover and humidity limit radiative cooling. Model consensus emphasizes steady monsoon flow without direct tropical cyclone impacts, though scattered thunderstorms could locally suppress the minimum by 1°C through added moisture and reduced clear-sky cooling. Traders assign nearly equal implied probabilities to 24–27°C outcomes because small shifts in overnight wind, rainfall timing, or cloud thickness—common in monsoon regimes—can easily move the recorded low across these thresholds before the August 23 minimum is finalized.