Recent National Weather Service and AccuWeather guidance points to overnight lows near 80–81°F across Miami on August 9, consistent with the market’s two leading bins that together exceed 65% implied probability. Persistent subtropical ridging and elevated dew points near 77°F are limiting nocturnal radiative cooling, while scattered evening convection and light easterly flow further suppress temperature drops. Historical August climatology shows typical minima around 78°F, but the current warm anomaly—driven by above-average sea-surface temperatures and minimal wind mixing—favors the higher range. Forecasters note that any increase in cloud cover or earlier thunderstorm outflow could shave a degree or two, whereas clearer skies would lock in readings near 82–83°F. Updated model runs and the next NWS evening discussion remain the key near-term catalysts for shifts in trader positioning.