National Weather Service forecasts for Miami on March 29 indicate a high temperature most likely in the upper 70s, with the 78-79°F range leading trader consensus at 34% implied probability, closely trailed by 76-77°F at 25.5%. This positioning stems from the latest 12z GFS and ECMWF model runs showing convergence on 77-80°F amid partly cloudy skies and light onshore flow from a lingering weak frontal boundary that cooled early-week projections from the low 80s. Key differentiators include sea breeze timing—earlier onset favors 76-77°F by enhancing coastal cooling—versus delayed breeze and more afternoon sun pushing toward 80-81°F. Diurnal heating peaks around 2-4 PM EDT, with official observations from Miami International Airport resolving the market; expect refined guidance from hourly updates and evening soundings. Climatologically, March highs average 80°F, but current neutral ENSO conditions support this mild setup absent tropical influences.