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WON climate

Will the minimum temperature be 71-72° on Apr 25, 2026?

The Setup

This market asks if the official low temperature at Miami International Airport (KMIA) will land in the narrow 71-72°F window today. While generic weather apps show 70°F for the broader city, official airport observations and global models strongly point to a 71-72°F finish. Traders are weighing high-resolution station data against the risk of a repeat of yesterday's 70°F low.

Pre-dawn observations at Miami International Airport are running exactly two degrees warmer than yesterday, perfectly aligning with the 72°F model consensus and boxing out a repeat of yesterday's 70°F low.

Market
58c
Our Estimate
55-75c
Edge
+7c

Bull Case

The strongest indicator for a YES resolution is the real-time METAR data from Miami International Airport (KMIA). At 3:53 AM EDT, the station recorded 73°F, which is exactly two degrees warmer than the 71°F recorded at the same time yesterday. With sunrise observations showing the temperature bottoming out around 71.5°F, the official daily minimum is highly likely to round to 71°F or 72°F in the NWS Climatological Report. Professional meteorological models have reached a rare, high-confidence consensus for this specific date. Both the GFS and ECMWF morning runs converge on a 72°F minimum, accounting for a gradual increase in low-level moisture that traps outgoing longwave radiation. The official NWS forecast for Miami also explicitly predicts a low of 71°F, placing the most probable outcomes squarely within the target bracket. The contrarian argument relying on generic weather aggregators reporting 70°F at 6:52 AM is fundamentally flawed. These aggregators often pull from cooler inland stations or use spatial interpolation. The market resolves specifically on the KMIA station, which benefits from an urban heat island effect and coastal proximity, typically keeping it 1-2 degrees warmer than the surrounding inland areas during overnight hours.

Bear Case

The primary risk to a YES outcome is the persistent onshore East wind. At 4:00 AM, KMIA reported an East wind at 6 mph, bringing in warm marine air from the Atlantic Ocean (where sea surface temperatures are around 79°F). If this onshore flow prevents the boundary layer from decoupling, the temperature could simply flatline at 73°F through sunrise, causing the market to resolve NO. Conversely, if the wind drops off completely and radiational cooling is as efficient as the previous night, the temperature could slip back to 70°F. Yesterday's official low was 70°F, and if the 70°F readings reported by some aggregators this morning actually reflect a transient dip at the KMIA sensor, the NWS could record a 70°F minimum. Finally, the NWS forecast includes a 20 to 30 percent chance of afternoon showers and thunderstorms. If the morning low holds at 73°F, a strong afternoon thunderstorm could produce rain-cooled air that drops the temperature into the 60s or exactly to 70°F, overshooting the narrow 71-72°F target window before the 24-hour period ends.

What Could Go Wrong

IF the persistent East wind brings in enough warm marine air to keep the KMIA temperature flat at 73°F through sunrise, THEN the market will resolve NO. IF a brief period of clear skies and calm winds just before dawn allows the KMIA sensor to record a transient dip to 70.4°F (rounding to 70°F), THEN the market will resolve NO despite models forecasting 71-72°F.

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