Recent ensemble forecasts from global models indicate Panama City’s May 18 maximum will likely fall in the 31–33 °C range, with the narrow spread in market-implied odds reflecting uncertainty in afternoon convective timing and cloud cover. A warm, moist air mass typical of the early wet season, combined with light steering winds and high boundary-layer humidity, supports peak temperatures near the climatological 31 °C average; however, any earlier onset of showers or thicker cumulus could cap readings at 31 °C, while clearer skies and stronger insolation would allow brief excursions to 33 °C or higher. Official guidance from regional meteorological services emphasizes these short-term variables as the primary drivers distinguishing adjacent outcome bins.