Current National Weather Service and private forecast models indicate Miami highs on September 22 will likely reach the mid-to-upper 80s, driven by persistent tropical moisture, south-southeast winds, and widespread afternoon thunderstorm activity that promotes cloud cover and evaporative cooling. These conditions align with late-September climatology, where sea-breeze convergence and convective outflow frequently cap daytime peaks below the historical average of roughly 88–89 °F. Trader consensus across the closely bunched 84–89 °F outcomes reflects model spread in storm timing and intensity, as even modest shifts in convective initiation can alter the observed maximum by several degrees. Updated NHC and local office guidance through the 22nd will provide the key data for resolution.