**Trader sentiment for Miami's August 3 low temperature centers on the 78–81°F range because short-range forecast guidance from NOAA and NWS consistently projects overnight minimums near the seasonal average of ~78–80°F.** Persistent high humidity, scattered nocturnal cloud cover from typical afternoon thunderstorms, and warm Gulf Stream waters limit radiational cooling, keeping lows from dropping into the mid-70s or below. Recent observations show similar conditions, with the past several nights recording 79–80°F minima amid a continuation of above-normal heat following July's record warmth. Model consensus shows little day-to-day variability expected for August 3, with no approaching cold front or tropical moisture surge to alter the pattern significantly. This supports the market-implied odds favoring 80–81°F as the mode, while lower-probability outcomes below 76°F would require an atypical clear, drier airmass that current guidance does not indicate. Updated NWS point forecasts and any new model runs ahead of resolution will be the key near-term drivers.