Current National Weather Service guidance and model consensus point to a Miami high near 92–94°F on July 15, with afternoon sea-breeze convergence and scattered thunderstorms expected to moderate peak heating after midday. These factors create the narrow spread between the 92–93°F and 94–95°F brackets that together hold nearly 90% of market-implied probability. Diurnal temperature rise is typically capped by the Atlantic breeze arriving between 1–3 p.m. local time and by convective cloud cover that reduces insolation; small shifts in breeze timing or storm initiation can swing the daily maximum by 2–3°F. Historical July climatology at MIA shows a median high of 90°F with a standard deviation of roughly 3°F, underscoring the genuine uncertainty reflected in the closely matched leading outcomes. Updated model runs and the 1 p.m. NWS forecast discussion will be the next key data points for traders.