Official observations from Adolfo Suárez Madrid–Barajas Airport, the resolution station for this market, recorded a maximum temperature of 26°C on April 17, solidifying trader consensus at a 100% implied probability for that outcome as final data emerged overnight. This reading, verified by Spain's AEMET meteorological agency, exceeded the April climatological average high of about 19°C amid a high-pressure system fostering clear skies and above-normal warmth, consistent with model forecasts predicting mid-20s Celsius peaks. While measurement protocols ensure high reliability, a realistic challenge could arise from rare post hoc revisions if equipment calibration issues or data outliers are identified in quality-controlled reports, though such adjustments are infrequent for daily maxima.
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 17?
Highest temperature in Madrid on April 17?
26°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$117,951 Vol.
$117,951 Vol.
Apr 17, 2026
20°C or below
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°C
No
28°C
No
29°C
No
30°C or higher
No
26°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$117,951 Vol.
$117,951 Vol.
Apr 17, 2026
20°C or below
$2,838 Vol.
No
21°C
$4,222 Vol.
No
22°C
$5,242 Vol.
No
23°C
$5,039 Vol.
No
24°C
$7,188 Vol.
No
25°C
$24,639 Vol.
No
26°C
$23,098 Vol.
Yes
27°C
$16,932 Vol.
No
28°C
$17,100 Vol.
No
29°C
$6,630 Vol.
No
30°C or higher
$5,023 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 17 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 Adolfo Suárez Madrid–Barajas Airport, the resolution station for this market, recorded a maximum temperature of 26°C on April 17, solidifying trader consensus at a 100% implied probability for that outcome as final data emerged overnight. This reading, verified by Spain's AEMET meteorological agency, exceeded the April climatological average high of about 19°C amid a high-pressure system fostering clear skies and above-normal warmth, consistent with model forecasts predicting mid-20s Celsius peaks. While measurement protocols ensure high reliability, a realistic challenge could arise from rare post hoc revisions if equipment calibration issues or data outliers are identified in quality-controlled reports, though such adjustments are infrequent for daily maxima.
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 17 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 15, 2026, 12:11 AM ET
Volume
$117,951End Date
Apr 17, 2026Market Opened
Apr 15, 2026, 12:11 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 17 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 Adolfo Suárez Madrid–Barajas Airport, the resolution station for this market, recorded a maximum temperature of 26°C on April 17, solidifying trader consensus at a 100% implied probability for that outcome as final data emerged overnight. This reading, verified by Spain's AEMET meteorological agency, exceeded the April climatological average high of about 19°C amid a high-pressure system fostering clear skies and above-normal warmth, consistent with model forecasts predicting mid-20s Celsius peaks. While measurement protocols ensure high reliability, a realistic challenge could arise from rare post hoc revisions if equipment calibration issues or data outliers are identified in quality-controlled reports, though such adjustments are infrequent for daily maxima.
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 17 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
$117,951End Date
Apr 17, 2026Market Opened
Apr 15, 2026, 12:11 AM ETResolution Source
https://www.wunderground.com/history/daily/es/madrid/LEMDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from Adolfo Suárez Madrid–Barajas Airport, the resolution station for this market, recorded a maximum temperature of 26°C on April 17, solidifying trader consensus at a 100% implied probability for that outcome as final data emerged overnight. This reading, verified by Spain's AEMET meteorological agency, exceeded the April climatological average high of about 19°C amid a high-pressure system fostering clear skies and above-normal warmth, consistent with model forecasts predicting mid-20s Celsius peaks. While measurement protocols ensure high reliability, a realistic challenge could arise from rare post hoc revisions if equipment calibration issues or data outliers are identified in quality-controlled reports, though such adjustments are infrequent for daily maxima.
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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