**Persistent tropical moisture and easterly flow are keeping Miami's overnight lows elevated near 80°F for August 30, with forecasts from the National Weather Service and private models converging on 80–82°F.** High dew points near 78°F and humidity around 80% limit nocturnal cooling under partly cloudy skies, while scattered showers and thunderstorms—expected with 60–70% probability—add further insulation. Historical averages for the date sit near 77.5°F, but the current warm, humid air mass has pushed recent analogs and model guidance higher. The tight clustering of market-implied odds around 78–83°F reflects modest forecast spread driven by variables such as exact cloud cover timing, wind speed (generally 5–10 mph from the east), and storm placement, all of which can shift the low by a degree or two. Updated model runs and National Weather Service briefings over the next 24 hours will likely refine these probabilities before resolution.