**Trader sentiment for Miami's lowest temperature on August 27, 2026, centers on the 78–83°F range, with 80–81°F holding a slight edge at 41.5% implied probability amid closely matched bins.** Official National Weather Service forecasts and observational data show an overnight low near 81–83°F under a humid tropical air mass, with dew points around 77°F limiting radiative cooling. Southeast winds of 5–10 mph and variable cloud cover (partly to mostly cloudy early) further moderate overnight temperature drops, consistent with late-August climatology where Miami lows average ~76–78°F but recent years trend warmer. The tight spread between 78–79°F (37%) and 82–83°F (36.5%) reflects model and source variability in exact minimums—some guidance edges lower with clearer skies or light showers enhancing cooling, while others hold in the low 80s due to persistent moisture and minimal wind shift. Current early-morning readings near 82–84°F support these central outcomes, with limited downside risk absent atypical synoptic changes. Traders are effectively pricing the balance of typical summer humidity versus any nocturnal clearing.