Latest National Weather Service guidance for Miami International Airport forecasts a high near 82°F on May 4, amid post-frontal cooling following Sunday showers from an approaching boundary, driving closely matched market-implied probabilities of 35-37% across 78-87°F bins. Observed near-record heat of 86-87°F on May 1 has traders weighing residual warmth against enhanced sea breeze convergence and potential lingering convection, which could cap peaks at 78-79°F if widespread or allow 84-86°F if patchy. Model ensembles diverge modestly—GFS warmer near 84°F, ECMWF cooler at 80°F—highlighting uncertainty in boundary layer moisture and upper-level trough influences over South Florida's humid subtropical regime, where May climatological averages hover at 85°F. New 12z runs and afternoon forecast discussions will refine trajectories before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Miami on May 4?
Highest temperature in Miami on May 4?
80-81°F 29%
82-83°F 28%
84-85°F 15%
78-79°F 14%
75°F or below
1%
76-77°F
5%
78-79°F
18%
80-81°F
29%
82-83°F
26%
84-85°F
16%
86-87°F
5%
88-89°F
1%
90-91°F
1%
92-93°F
1%
94°F or higher
1%
80-81°F 29%
82-83°F 28%
84-85°F 15%
78-79°F 14%
75°F or below
1%
76-77°F
5%
78-79°F
18%
80-81°F
29%
82-83°F
26%
84-85°F
16%
86-87°F
5%
88-89°F
1%
90-91°F
1%
92-93°F
1%
94°F or higher
1%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Miami Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/fl/miami/KMIA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: May 2, 2026, 12:08 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIAResolver
0x69c47De9D...The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Miami Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/fl/miami/KMIA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIAResolver
0x69c47De9D...Latest National Weather Service guidance for Miami International Airport forecasts a high near 82°F on May 4, amid post-frontal cooling following Sunday showers from an approaching boundary, driving closely matched market-implied probabilities of 35-37% across 78-87°F bins. Observed near-record heat of 86-87°F on May 1 has traders weighing residual warmth against enhanced sea breeze convergence and potential lingering convection, which could cap peaks at 78-79°F if widespread or allow 84-86°F if patchy. Model ensembles diverge modestly—GFS warmer near 84°F, ECMWF cooler at 80°F—highlighting uncertainty in boundary layer moisture and upper-level trough influences over South Florida's humid subtropical regime, where May climatological averages hover at 85°F. New 12z runs and afternoon forecast discussions will refine trajectories before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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