Official observations from Spain's State Meteorological Agency (AEMET) at Adolfo Suárez Madrid–Barajas Airport—the designated resolution station—confirm a maximum temperature of 26°C on April 9, 2026, around midday, driving trader consensus to near-certainty on this outcome amid clear skies and a persistent high-pressure ridge over Iberia. This peak aligned with model consensus from leading European weather services, which forecasted highs near 26°C under southerly winds and ample solar insolation, well above the early April climatological average of 17–18°C. Scenarios challenging this include rare post hoc data revisions from instrument recalibration or auxiliary station outliers exceeding 27°C, though AEMET's rigorous quality controls make such shifts improbable; final daily summaries are due imminently.
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 9?
26°C 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$117,347 Vol.
$117,347 Vol.
17°C or below
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°C or higher
No
26°C 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$117,347 Vol.
$117,347 Vol.
17°C or below
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°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 5, 2026, 12:10 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 Spain's State Meteorological Agency (AEMET) at Adolfo Suárez Madrid–Barajas Airport—the designated resolution station—confirm a maximum temperature of 26°C on April 9, 2026, around midday, driving trader consensus to near-certainty on this outcome amid clear skies and a persistent high-pressure ridge over Iberia. This peak aligned with model consensus from leading European weather services, which forecasted highs near 26°C under southerly winds and ample solar insolation, well above the early April climatological average of 17–18°C. Scenarios challenging this include rare post hoc data revisions from instrument recalibration or auxiliary station outliers exceeding 27°C, though AEMET's rigorous quality controls make such shifts improbable; final daily summaries are due imminently.
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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