Trader consensus on Polymarket prices a tight race among 26–28°C outcomes for Buenos Aires' highest temperature on April 18, reflecting short-range forecast model spread under a high-pressure ridge delivering sunny skies, light winds, and highs 4–5°C above the April climatological average of 22°C at Ezeiza airport (resolution source via Wunderground). AccuWeather's latest guidance projects a 25°C peak with RealFeel® up to 27°C from solar heating, while GFS/ECMWF ensembles diverge by 1–2°C due to uncertainties in sea breeze timing from Río de la Plata, thin cirrus clouds, and urban heat island amplification in the city center versus the airport site. Highs climbed to 24–25°C over the past 48 hours with clearing trends; watch SMN updates and 12Z ECMWF run for refinements before daily maximum locks in.
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?
Highest temperature in Buenos Aires on April 18?
27°C 26%
26°C 25%
28°C 24%
25°C 13%
20°C or below
<1%
21°C
1%
22°C
1%
23°C
1%
24°C
6%
25°C
13%
26°C
25%
27°C
26%
28°C
24%
29°C
10%
30°C or higher
4%
27°C 26%
26°C 25%
28°C 24%
25°C 13%
20°C or below
<1%
21°C
1%
22°C
1%
23°C
1%
24°C
6%
25°C
13%
26°C
25%
27°C
26%
28°C
24%
29°C
10%
30°C or higher
4%
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...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...Trader consensus on Polymarket prices a tight race among 26–28°C outcomes for Buenos Aires' highest temperature on April 18, reflecting short-range forecast model spread under a high-pressure ridge delivering sunny skies, light winds, and highs 4–5°C above the April climatological average of 22°C at Ezeiza airport (resolution source via Wunderground). AccuWeather's latest guidance projects a 25°C peak with RealFeel® up to 27°C from solar heating, while GFS/ECMWF ensembles diverge by 1–2°C due to uncertainties in sea breeze timing from Río de la Plata, thin cirrus clouds, and urban heat island amplification in the city center versus the airport site. Highs climbed to 24–25°C over the past 48 hours with clearing trends; watch SMN updates and 12Z ECMWF run for refinements before daily maximum locks in.
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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