Official AEMET observations from Adolfo Suárez Madrid-Barajas Airport confirm the highest temperature on April 19, 2026, reached 28°C, driving market-implied odds to 100% consensus on this outcome as traders incorporated real-time data throughout the day. This peak aligned precisely with the latest ECMWF and GFS model runs from April 17-18, which converged on 28°C amid a persistent high-pressure ridge over Iberia fostering subsidence warming, clear skies, and light southerly flows—conditions well above Madrid's April climatological average high of 18°C. Such strong evidence reflects the wisdom of crowds in prediction markets, though rare scenarios like post hoc data revisions from quality control or overlooked sensor readings could theoretically challenge resolution. No further updates expected beyond AEMET's standard 24-hour validation.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Madrid on April 19?
Highest temperature in Madrid on April 19?
28°C 100.0%
21°C or below <1%
22°C <1%
23°C <1%
$98,229 Vol.
$98,229 Vol.
Apr 19, 2026
21°C or below
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C
Yes
29°C
No
30°C
No
31°C or higher
No
28°C 100.0%
21°C or below <1%
22°C <1%
23°C <1%
$98,229 Vol.
$98,229 Vol.
Apr 19, 2026
21°C or below
$2,055 Vol.
No
22°C
$2,569 Vol.
No
23°C
$1,784 Vol.
No
24°C
$2,731 Vol.
No
25°C
$6,090 Vol.
No
26°C
$13,984 Vol.
No
27°C
$26,769 Vol.
No
28°C
$14,090 Vol.
Yes
29°C
$12,982 Vol.
No
30°C
$9,105 Vol.
No
31°C or higher
$6,071 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the Adolfo Suárez Madrid-Barajas Airport Station in degrees Celsius on 19 Apr '26.
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 Adolfo Suárez Madrid-Barajas Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/es/madrid/LEMD.
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 Celsius (eg, 9°C). 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.Official AEMET observations from Adolfo Suárez Madrid-Barajas Airport confirm the highest temperature on April 19, 2026, reached 28°C, driving market-implied odds to 100% consensus on this outcome as traders incorporated real-time data throughout the day. This peak aligned precisely with the latest ECMWF and GFS model runs from April 17-18, which converged on 28°C amid a persistent high-pressure ridge over Iberia fostering subsidence warming, clear skies, and light southerly flows—conditions well above Madrid's April climatological average high of 18°C. Such strong evidence reflects the wisdom of crowds in prediction markets, though rare scenarios like post hoc data revisions from quality control or overlooked sensor readings could theoretically challenge resolution. No further updates expected beyond AEMET's standard 24-hour validation.
This market will resolve to the temperature range that contains the highest temperature recorded at the Adolfo Suárez Madrid-Barajas Airport Station in degrees Celsius on 19 Apr '26.
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 Adolfo Suárez Madrid-Barajas Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/es/madrid/LEMD.
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 Celsius (eg, 9°C). 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.
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 Adolfo Suárez Madrid-Barajas Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/es/madrid/LEMD.
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 Celsius (eg, 9°C). 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: Apr 17, 2026, 12:12 AM ET
Volume
$98,229End Date
Apr 19, 2026Market Opened
Apr 17, 2026, 12:12 AM ETResolution Source
https://www.wunderground.com/history/daily/es/madrid/LEMDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded at the Adolfo Suárez Madrid-Barajas Airport Station in degrees Celsius on 19 Apr '26.
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 Adolfo Suárez Madrid-Barajas Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/es/madrid/LEMD.
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 Celsius (eg, 9°C). 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.Official AEMET observations from Adolfo Suárez Madrid-Barajas Airport confirm the highest temperature on April 19, 2026, reached 28°C, driving market-implied odds to 100% consensus on this outcome as traders incorporated real-time data throughout the day. This peak aligned precisely with the latest ECMWF and GFS model runs from April 17-18, which converged on 28°C amid a persistent high-pressure ridge over Iberia fostering subsidence warming, clear skies, and light southerly flows—conditions well above Madrid's April climatological average high of 18°C. Such strong evidence reflects the wisdom of crowds in prediction markets, though rare scenarios like post hoc data revisions from quality control or overlooked sensor readings could theoretically challenge resolution. No further updates expected beyond AEMET's standard 24-hour validation.
This market will resolve to the temperature range that contains the highest temperature recorded at the Adolfo Suárez Madrid-Barajas Airport Station in degrees Celsius on 19 Apr '26.
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 Adolfo Suárez Madrid-Barajas Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/es/madrid/LEMD.
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 Celsius (eg, 9°C). 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.
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 Adolfo Suárez Madrid-Barajas Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/es/madrid/LEMD.
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 Celsius (eg, 9°C). 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.
Volume
$98,229End Date
Apr 19, 2026Market Opened
Apr 17, 2026, 12:12 AM ETResolution Source
https://www.wunderground.com/history/daily/es/madrid/LEMDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official AEMET observations from Adolfo Suárez Madrid-Barajas Airport confirm the highest temperature on April 19, 2026, reached 28°C, driving market-implied odds to 100% consensus on this outcome as traders incorporated real-time data throughout the day. This peak aligned precisely with the latest ECMWF and GFS model runs from April 17-18, which converged on 28°C amid a persistent high-pressure ridge over Iberia fostering subsidence warming, clear skies, and light southerly flows—conditions well above Madrid's April climatological average high of 18°C. Such strong evidence reflects the wisdom of crowds in prediction markets, though rare scenarios like post hoc data revisions from quality control or overlooked sensor readings could theoretically challenge resolution. No further updates expected beyond AEMET's standard 24-hour validation.
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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