National Weather Service observations at Miami International Airport (KMIA) recorded the highest temperature of 91°F on May 12, 2026, at 2:28 PM local time, driving trader consensus to 100% implied probability for the 90-91°F outcome. This peak aligned with above-normal May warmth—climatological average highs near 86°F—under partly cloudy skies and light sea breeze flows that capped solar insolation before afternoon convection brought cooling showers. Hourly ASOS data confirmed no higher readings, with temperatures dropping to 88°F by 4 PM and 84°F by 6 PM. Rare post-validation data revisions by NOAA quality control could theoretically challenge this, but official climate summaries validate the positioning amid typical urban heat island influences at KMIA.
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 12?
90-91°F 100.0%
81°F or below <1%
82-83°F <1%
84-85°F <1%
$82,391 Vol.
$82,391 Vol.
81°F or below
No
82-83°F
No
84-85°F
No
86-87°F
No
88-89°F
No
90-91°F
Yes
92-93°F
No
94-95°F
No
96-97°F
No
98-99°F
No
100°F or higher
No
90-91°F 100.0%
81°F or below <1%
82-83°F <1%
84-85°F <1%
$82,391 Vol.
$82,391 Vol.
81°F or below
No
82-83°F
No
84-85°F
No
86-87°F
No
88-89°F
No
90-91°F
Yes
92-93°F
No
94-95°F
No
96-97°F
No
98-99°F
No
100°F or higher
No
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 10, 2026, 12:10 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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...Outcome proposed: No
No dispute
Final outcome: No
National Weather Service observations at Miami International Airport (KMIA) recorded the highest temperature of 91°F on May 12, 2026, at 2:28 PM local time, driving trader consensus to 100% implied probability for the 90-91°F outcome. This peak aligned with above-normal May warmth—climatological average highs near 86°F—under partly cloudy skies and light sea breeze flows that capped solar insolation before afternoon convection brought cooling showers. Hourly ASOS data confirmed no higher readings, with temperatures dropping to 88°F by 4 PM and 84°F by 6 PM. Rare post-validation data revisions by NOAA quality control could theoretically challenge this, but official climate summaries validate the positioning amid typical urban heat island influences at KMIA.
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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