Forecast models from the National Weather Service and other sources indicate Miami will reach a daily high near 90–92°F on August 23, with afternoon sea-breeze convergence and scattered thunderstorms expected to limit further heating after peak insolation. High humidity (dew points near 78–80°F) supports elevated heat indices above 105°F early in the day, yet increasing cloud cover and convective activity—typical for late-summer South Florida—create a narrow window for the warmest readings. Recent observations, including a 94°F high the prior day, combined with climatological averages around 91°F, position the 92–93°F bin as the consensus outcome, while probabilities for 94°F+ remain lower due to storm timing and steering patterns. Updated model runs and NHC-adjacent guidance through evening will refine the final recorded maximum at official stations.