Persistent southwest monsoon flow across Luzon keeps Manila under extensive cloud cover and scattered thunderstorms on August 28, suppressing daytime heating and limiting nocturnal radiative cooling so that overnight minima cluster near 25–26 °C. Official guidance from PAGASA and ensemble model output show dew points remaining in the mid-20s °C with high humidity and moderate southwesterly winds, which together narrow the diurnal range and anchor the lowest temperature within a narrow window. The near-even market-implied odds among 24 °C, 25 °C, and 26 °C reflect residual uncertainty in the precise timing of heaviest rain bands and local urban heat-island effects that can shift the recorded minimum by 1–2 °C. Updated model runs and PAGASA briefings expected over the next 48 hours will determine whether the minimum settles at the lower or upper end of this range.