Highest temperature in Miami on August 25?

Platform comparison

Market context

Miami is tracking towards another hot August afternoon, with the National Weather Service forecasting high temperatures in the low to mid 90s through the rest of the week and scattered showers mainly arriving later in the day.[2][4] At Miami International Airport itself, the 25 August daily climate report showed a maximum of 92F by early afternoon, with the all-time daily high for the date sitting at 94F in 1992, which is the sort of benchmark traders should have in mind when weighing the upper ranges.[5]

For a market on the day’s highest airport temperature, the key read is not just the afternoon peak but whether cloud cover and convective showers cap the top end before the typical 1-4 pm warmest window. Hourly observations on 25 August had already reached 90F by late morning, and the forecast matrix kept daytime values in the high 80s to low 90s, which supports outcomes around the low 90s rather than an outsized spike.[7][13] The main catalyst is the timing and coverage of showers and storms, which the local forecast says are most likely over interior and south-west Florida, leaving the coast and airport more exposed to heat if rainfall stays nearby but not overhead.[2][4]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Sports-specific comparison page for Highest temperature in Miami on August 25?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.

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