Official observations from the National Weather Service at Miami International Airport confirmed a daily maximum temperature of 88–89°F on May 20, aligning with the climatological normal of 87°F and recent forecast model guidance projecting limited afternoon heating under typical subtropical moisture. This strong data match explains the market’s near-certain consensus on the 88–89°F bracket. Realistic challenges remain narrow, such as minor station calibration differences or localized microclimate variations, but National Weather Service standards and historical verification processes make significant revisions unlikely 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 20?
88-89°F 100.0%
90-91°F <1%
92-93°F <1%
94-95°F <1%
$34,300 Vol.
$34,300 Vol.
88-89°F
100%
90-91°F
<1%
92-93°F
<1%
94-95°F
<1%
96°F or higher
<1%
88-89°F 100.0%
90-91°F <1%
92-93°F <1%
94-95°F <1%
$34,300 Vol.
$34,300 Vol.
88-89°F
100%
90-91°F
<1%
92-93°F
<1%
94-95°F
<1%
96°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 18, 2026, 12:06 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...Official observations from the National Weather Service at Miami International Airport confirmed a daily maximum temperature of 88–89°F on May 20, aligning with the climatological normal of 87°F and recent forecast model guidance projecting limited afternoon heating under typical subtropical moisture. This strong data match explains the market’s near-certain consensus on the 88–89°F bracket. Realistic challenges remain narrow, such as minor station calibration differences or localized microclimate variations, but National Weather Service standards and historical verification processes make significant revisions unlikely before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

Beware of external links.
Beware of external links.
Frequently Asked Questions