Highest temperature in Miami on August 24?

Platform comparison

Market context

Miami International Airport’s high for 24 August will be set by the warmest hourly reading NOAA logged through the day, not by the daily forecast high. In practice, that means traders are watching the station’s hourly table for the peak print and any late-afternoon surge before convection or onshore flow cools things off.

Historically, Miami in late August sits in a tight but hot band: highs commonly cluster in the upper 80s to low 90s Fahrenheit, with humid mornings and frequent afternoon thunderstorms that can cap the top end. Recent NWS guidance for the area has pointed to upper-80s to low-90s daytime maxima, while the airport itself had already printed around 90°F by midday, which keeps the distribution skewed towards the top of the usual August range rather than a cool outcome. For a programmatic approach, the useful trigger is not the forecast headline but the observed hourly sequence at KMIA: once the day’s maximum is locked in, the market should be priced against the relevant band around that reading.

The main catalysts are the timing of storms, sea-breeze arrival, and whether cloud cover or outflow boundaries arrive early enough to suppress the day’s peak. The NWS Miami forecast discussion highlighted hot and humid conditions with heat indices around 105–110°F and a non-trivial chance of very high air temperatures, so conditional orders are best tied to updated hourly observations rather than static pre-market forecasts. Traders using bots or copy-trading typically watch for the first hourly print above the prevailing range, then hedge if convective development appears likely to cap the max before mid-afternoon.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Highest temperature in Miami on August 24? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

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