Forecast consensus from National Weather Service and other models points to a highest temperature in Miami on September 30 in the low-to-mid 80s, with 60-70% chances of showers and thunderstorms under easterly flow. Abundant tropical moisture and increasing cloud cover from convective activity are expected to moderate peak heating despite warm Gulf and Atlantic sea surface temperatures typical for late September. Recent model runs show slightly cooler guidance than earlier outlooks due to enhanced onshore winds and precipitation potential, keeping the distribution centered near 83-86°F while leaving room for variance based on storm timing and coverage.