Official AEMET observations from the Madrid-Barajas Airport station—the market's key resolution source—recorded a maximum temperature of 26.3°C at 19:20 on April 26, 2026, driving full trader consensus (100% implied probability) on the 26°C outcome, rounded to the nearest whole degree per market rules. This aligns with preceding forecasts projecting 25-26°C amid persistent high-pressure systems and partly cloudy skies that limited cooling, against Madrid's typical April highs of 17-20°C on the Saffir-Simpson baseline climatology. While data revisions by AEMET are rare post-publication, an unlikely correction to 27°C or higher based on sensor recalibration could challenge positioning, though final hourly logs confirm no such shift.
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 26?
26°C 100%
20°C or below <1%
21°C <1%
22°C <1%
$110,480 Vol.
$110,480 Vol.
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%
20°C or below <1%
21°C <1%
22°C <1%
$110,480 Vol.
$110,480 Vol.
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
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 24, 2026, 12:07 AM ET
Resolution Source
https://www.wunderground.com/history/daily/es/madrid/LEMDResolver
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 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.
Resolution Source
https://www.wunderground.com/history/daily/es/madrid/LEMDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official AEMET observations from the Madrid-Barajas Airport station—the market's key resolution source—recorded a maximum temperature of 26.3°C at 19:20 on April 26, 2026, driving full trader consensus (100% implied probability) on the 26°C outcome, rounded to the nearest whole degree per market rules. This aligns with preceding forecasts projecting 25-26°C amid persistent high-pressure systems and partly cloudy skies that limited cooling, against Madrid's typical April highs of 17-20°C on the Saffir-Simpson baseline climatology. While data revisions by AEMET are rare post-publication, an unlikely correction to 27°C or higher based on sensor recalibration could challenge positioning, though final hourly logs confirm no such shift.
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