Official observations from the Adolfo Suárez Madrid-Barajas Airport station (LEMD), the market's resolution source via Wunderground, confirm a daily maximum temperature of 21°C on May 14, driving trader consensus to a 100% implied probability on this outcome. AEMET data aligns closely, with nearby stations like Retiro recording 21.7°C and Ciudad Universitaria 22.9°C, amid persistent cloud cover from a recent frontal system and cool northerly flow that limited solar insolation and suppressed daytime heating below typical mid-May averages of 23–24°C. ECMWF and AEMET forecast models had converged on mild maxima of 20–22°C in the days prior, reflecting these atmospheric conditions. Realistic challenges are minimal post-finalization, though rare data revisions or station-specific microclimate discrepancies could theoretically prompt review; no further updates are expected.
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 May 14?
21°C 100.0%
18°C or below <1%
19°C <1%
20°C <1%
$86,948 Vol.
$86,948 Vol.
18°C or below
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C or higher
No
21°C 100.0%
18°C or below <1%
19°C <1%
20°C <1%
$86,948 Vol.
$86,948 Vol.
18°C or below
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
No
28°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: May 12, 2026, 12:44 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 observations from the Adolfo Suárez Madrid-Barajas Airport station (LEMD), the market's resolution source via Wunderground, confirm a daily maximum temperature of 21°C on May 14, driving trader consensus to a 100% implied probability on this outcome. AEMET data aligns closely, with nearby stations like Retiro recording 21.7°C and Ciudad Universitaria 22.9°C, amid persistent cloud cover from a recent frontal system and cool northerly flow that limited solar insolation and suppressed daytime heating below typical mid-May averages of 23–24°C. ECMWF and AEMET forecast models had converged on mild maxima of 20–22°C in the days prior, reflecting these atmospheric conditions. Realistic challenges are minimal post-finalization, though rare data revisions or station-specific microclimate discrepancies could theoretically prompt review; no further updates are expected.
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