Recent National Weather Service and AccuWeather guidance places Miami’s overnight low for May 19 in the mid- to upper-70s Fahrenheit, consistent with the long-term May climatology of 72–76 °F at Miami International Airport. This range arises from the prevailing subtropical ridge, light easterly flow off the Atlantic, and minimal frontal activity typical of late spring, keeping diurnal cooling modest. Model consensus shows no significant cold-air intrusion, yet day-to-day variability in dew-point advection and cloud cover can still produce a minimum near or below 73 °F roughly 35–40 % of the time in historical analogs. With resolution just three days away, the next 00Z and 12Z runs from the GFS and ECMWF will tighten the forecast and determine whether the market’s leading 73 °F-or-below bucket holds or shifts toward the 76–79 °F cluster.