Current forecast models from NOAA and NHC point to typical late-July subtropical conditions driving Miami's overnight low into the upper 70s or low 80s, with trader consensus clustered around 78–81°F reflecting this baseline. High sea-surface temperatures near 85°F limit radiational cooling overnight, while elevated dew points and humidity sustain warmth; scattered afternoon thunderstorms may increase cloud cover that traps heat or allow brief clear periods for modest drops. Light steering winds and absence of tropical systems or cold fronts keep variability low, though model runs differ slightly on exact cloud timing and wind speed, which can shift the minimum by 1–2°F. Updated NWS guidance and local observations tomorrow morning will refine resolution near these thresholds.