Latest forecast ensembles from global models like ECMWF and GFS indicate a high-pressure ridge over eastern Argentina will promote sunny skies and subsidence warming in Buenos Aires on March 29, pushing peak temperatures into the upper 20s to low 30s Celsius, with trader consensus reflecting this tight clustering around 29–31°C. Divergence arises from uncertainties in sea breeze timing, which could moderate coastal highs, and cloud development in the late afternoon; GFS runs lean slightly warmer (favoring 31°C), while ECMWF shows more cooling potential toward 29°C. Observational data from the past 48 hours show stable upper-air patterns with temperatures aloft supporting highs near 30°C, aligning with March climatology where daily maxima average 25–28°C but often spike under ridge influence. Traders await hourly guidance from Argentina's Servicio Meteorológico Nacional later today, which could sharpen resolution as the date nears.