Official forecasts from the National Weather Service and ensemble models indicate a minimum temperature in Miami on August 30 most likely in the low 80s, driven by persistent easterly flow, high dew points near 78–80°F, and widespread cloud cover from afternoon thunderstorms that suppress nocturnal radiative cooling. This setup narrows the typical late-August diurnal range, keeping overnight lows elevated compared to clearer historical analogs around 79°F. Trader weighting toward 80–81°F reflects consensus on these conditions, while dispersion across adjacent bins captures uncertainty in exact storm timing, localized wind shifts, and any last-minute model revisions before the overnight period. Updated NHC and local WFO guidance overnight will provide the final observational benchmark for market resolution.