**Trader sentiment for Miami's June 15 lowest temperature centers on 78–79°F (40.5% implied probability) and 76–77°F (24.5%), reflecting National Weather Service and model consensus for an overnight low in the upper 70s.** Miami’s subtropical June climate features persistently warm Gulf Stream and Atlantic sea-surface temperatures that limit nocturnal cooling, combined with high humidity and frequent evening cloud cover or scattered showers that trap heat. Recent observations show June 12–13 minima at 78–81°F—several degrees above the 1991–2020 normal of ~76°F—consistent with an ongoing warm, moist pattern and lack of any significant dry-air intrusion or frontal passage. Extended point forecasts and ensemble guidance maintain 77–79°F lows for the night of June 14–15, with only modest variability tied to exact thunderstorm timing and wind speeds. These conditions position the 76–79°F range as the clear scientific baseline, while lower or higher bins remain low-probability outliers absent an unexpected shift in steering flow or moisture.