**Persistent southwest monsoon conditions over Singapore, with southeast to southwest winds and localized afternoon thundery showers expected on some days, form the main driver of trader sentiment for the August 25 maximum temperature.** Official fortnightly guidance from Singapore's weather service indicates daily highs most likely between 33–34 °C, with a chance of reaching 35 °C under clearer spells, consistent with recent observations where highs frequently exceeded 33 °C and peaked near 34.9 °C earlier in August. Forecast models show variable cloud cover and precipitation timing that could cap afternoon heating or allow brief warmer periods, creating genuine uncertainty reflected in closely matched market-implied probabilities across the 30–37 °C range. Above-average warmth and below-average rainfall so far this month add context, while the proximity to resolution heightens sensitivity to the next model updates on steering patterns and shower development.