Official observations from Spain's Agencia Estatal de Meteorología (AEMET) at Adolfo Suárez Madrid-Barajas Airport—the market's resolution source—confirm the highest temperature on April 21, 2026, peaked at 26.6°C around 3 p.m. local time, aligning precisely with the 26°C outcome bin and yielding 100% trader consensus backed by real capital. This result undercut pre-event forecasts of 27–29°C from numerical weather prediction models, likely due to increased high cloud cover and subdued southerly winds that capped daytime heating despite a broader warm spell in central Spain. With data now finalized in AEMET's automated station records, revision risks are negligible barring rare quality-control anomalies or sensor recalibrations.
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 21?
Highest temperature in Madrid on April 21?
26°C 100.0%
22°C or below <1%
23°C <1%
24°C <1%
$113,163 Vol.
$113,163 Vol.
Apr 21, 2026
22°C or below
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°C
No
28°C
No
29°C
No
30°C
No
31°C
No
32°C or higher
No
26°C 100.0%
22°C or below <1%
23°C <1%
24°C <1%
$113,163 Vol.
$113,163 Vol.
Apr 21, 2026
22°C or below
$1,030 Vol.
No
23°C
$4,792 Vol.
No
24°C
$7,126 Vol.
No
25°C
$8,624 Vol.
No
26°C
$30,894 Vol.
Yes
27°C
$16,507 Vol.
No
28°C
$17,080 Vol.
No
29°C
$10,946 Vol.
No
30°C
$9,502 Vol.
No
31°C
$3,817 Vol.
No
32°C or higher
$2,846 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 21 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 observations from Spain's Agencia Estatal de Meteorología (AEMET) at Adolfo Suárez Madrid-Barajas Airport—the market's resolution source—confirm the highest temperature on April 21, 2026, peaked at 26.6°C around 3 p.m. local time, aligning precisely with the 26°C outcome bin and yielding 100% trader consensus backed by real capital. This result undercut pre-event forecasts of 27–29°C from numerical weather prediction models, likely due to increased high cloud cover and subdued southerly winds that capped daytime heating despite a broader warm spell in central Spain. With data now finalized in AEMET's automated station records, revision risks are negligible barring rare quality-control anomalies or sensor recalibrations.
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 21 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 19, 2026, 12:51 AM ET
Volume
$113,163End Date
Apr 21, 2026Market Opened
Apr 19, 2026, 12:51 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 21 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 observations from Spain's Agencia Estatal de Meteorología (AEMET) at Adolfo Suárez Madrid-Barajas Airport—the market's resolution source—confirm the highest temperature on April 21, 2026, peaked at 26.6°C around 3 p.m. local time, aligning precisely with the 26°C outcome bin and yielding 100% trader consensus backed by real capital. This result undercut pre-event forecasts of 27–29°C from numerical weather prediction models, likely due to increased high cloud cover and subdued southerly winds that capped daytime heating despite a broader warm spell in central Spain. With data now finalized in AEMET's automated station records, revision risks are negligible barring rare quality-control anomalies or sensor recalibrations.
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 21 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
$113,163End Date
Apr 21, 2026Market Opened
Apr 19, 2026, 12:51 AM ETResolution Source
https://www.wunderground.com/history/daily/es/madrid/LEMDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from Spain's Agencia Estatal de Meteorología (AEMET) at Adolfo Suárez Madrid-Barajas Airport—the market's resolution source—confirm the highest temperature on April 21, 2026, peaked at 26.6°C around 3 p.m. local time, aligning precisely with the 26°C outcome bin and yielding 100% trader consensus backed by real capital. This result undercut pre-event forecasts of 27–29°C from numerical weather prediction models, likely due to increased high cloud cover and subdued southerly winds that capped daytime heating despite a broader warm spell in central Spain. With data now finalized in AEMET's automated station records, revision risks are negligible barring rare quality-control anomalies or sensor recalibrations.
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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