Traders see the lowest temperature in Miami on June 30 split across the mid-to-upper 70s through low 80s because NOAA and NWS guidance show a typical early-summer regime of light easterly flow, high humidity, and scattered nocturnal showers. Persistent cloud cover from evening convection would trap heat and support an 80–81 °F minimum, while clearer breaks could allow radiational cooling toward 78 °F or below. Model consensus remains tight on the overall pattern yet diverges on exact overnight cloud fraction and shower timing, keeping probabilities clustered near 23–24 % for the central bins and leaving room for last-minute forecast adjustments from the National Weather Service.