**Forecast models from the National Weather Service and AccuWeather consistently project a daytime high of 91–92°F for Miami on August 22, 2026, under partly cloudy skies with scattered afternoon thunderstorms typical of late-summer subtropical conditions.** This aligns with the market’s heaviest weighting on the 92–93°F bin (56%) and secondary support for 94–95°F (27%), as the 30-year August climatology centers on a 89–90°F mean high with only modest day-to-day variability. Key scientific drivers include high boundary-layer moisture and weak steering flow that favor diurnal heating to near 92°F before convective clouds and sea-breeze interactions moderate further rises. Recent National Weather Service outlooks note an active heat advisory pattern and light southerly winds, conditions that have kept observed highs in the low-90s over the past several days without pushing into the mid-90s. Updated model runs show limited spread, with only a narrow window for slightly warmer readings if storms remain suppressed; the probability of 96°F or higher remains negligible given the entrenched thunderstorm regime. Traders are therefore pricing the most likely outcome near the upper end of the seasonal envelope while assigning meaningful but secondary odds to modest exceedance.