Official observations from Argentina's Servicio Meteorológico Nacional (SMN) at Ministro Pistarini International Airport confirm Buenos Aires' highest temperature reached exactly 28°C on April 18, anchoring trader consensus at 100% implied probability for that outcome. This direct measurement from calibrated automated weather stations, reporting hourly maxima under clear skies and subsiding high-pressure conditions, exceeded pre-event forecasts of 24–26°C, reflecting typical spring-like warmth atypical for autumn baselines around 22°C. Scenarios challenging this near-certainty include rare post-validation revisions for sensor anomalies, though SMN quality controls make such shifts improbable; the market awaits no further updates as resolution criteria are met.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Buenos Aires on April 18?
28°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$177,056 Vol.
$177,056 Vol.
20°C or below
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C
Yes
29°C
No
30°C or higher
No
28°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$177,056 Vol.
$177,056 Vol.
20°C or below
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C
Yes
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 Minister Pistarini Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/ar/ezeiza/SAEZ.
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 16, 2026, 1:07 AM ET
Resolution Source
https://www.wunderground.com/history/daily/ar/ezeiza/SAEZResolver
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 Minister Pistarini Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/ar/ezeiza/SAEZ.
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/ar/ezeiza/SAEZResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from Argentina's Servicio Meteorológico Nacional (SMN) at Ministro Pistarini International Airport confirm Buenos Aires' highest temperature reached exactly 28°C on April 18, anchoring trader consensus at 100% implied probability for that outcome. This direct measurement from calibrated automated weather stations, reporting hourly maxima under clear skies and subsiding high-pressure conditions, exceeded pre-event forecasts of 24–26°C, reflecting typical spring-like warmth atypical for autumn baselines around 22°C. Scenarios challenging this near-certainty include rare post-validation revisions for sensor anomalies, though SMN quality controls make such shifts improbable; the market awaits no further updates as resolution criteria are met.
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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