Recent model consensus from global and regional forecasts, including runs from the Global Forecast System and local Servicio Meteorológico Nacional guidance, points to a mild autumn day in Buenos Aires with a maximum temperature most likely between 17°C and 19°C. Stable high-pressure ridging and light southerly flow are limiting daytime heating while clear to partly cloudy skies allow modest solar input, keeping values close to the May climatological average of 17–19°C. Ensemble spreads remain modest, with minor differences arising from slight variations in boundary-layer mixing and cloud timing that could nudge the daily high by 1–2°C. Updated model cycles expected later today and tomorrow morning will further refine these probabilities ahead of market resolution.
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 May 19?
18°C 34%
19°C 24%
17°C 22%
16°C 12%
11°C or below
<1%
12°C
<1%
13°C
<1%
14°C
1%
15°C
3%
16°C
12%
17°C
22%
18°C
34%
19°C
24%
20°C
6%
21°C or higher
1%
18°C 34%
19°C 24%
17°C 22%
16°C 12%
11°C or below
<1%
12°C
<1%
13°C
<1%
14°C
1%
15°C
3%
16°C
12%
17°C
22%
18°C
34%
19°C
24%
20°C
6%
21°C or higher
1%
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: May 17, 2026, 12:03 AM ET
Resolution Source
https://www.wunderground.com/history/daily/ar/ezeiza/SAEZThe 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/SAEZRecent model consensus from global and regional forecasts, including runs from the Global Forecast System and local Servicio Meteorológico Nacional guidance, points to a mild autumn day in Buenos Aires with a maximum temperature most likely between 17°C and 19°C. Stable high-pressure ridging and light southerly flow are limiting daytime heating while clear to partly cloudy skies allow modest solar input, keeping values close to the May climatological average of 17–19°C. Ensemble spreads remain modest, with minor differences arising from slight variations in boundary-layer mixing and cloud timing that could nudge the daily high by 1–2°C. Updated model cycles expected later today and tomorrow morning will further refine these probabilities ahead of market resolution.
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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