Latest ensemble forecast models, including ECMWF and GFS runs updated in the past 24 hours, project Buenos Aires' highest temperature on March 27 at 27–29°C under a persistent high-pressure ridge and light southerly winds limiting advection of warmer air from the north. Trader consensus tilts slightly toward 28°C (34.5% implied probability) over 27°C (31.5%) due to subtle differences in boundary layer mixing and low-level cloud cover predictions, with 29°C viable if daytime heating exceeds model means. Short-range uncertainty remains high, as urban heat island effects and microscale sea breeze influences often diverge from coarser model resolutions. The Servicio Meteorológico Nacional's afternoon update could refine these odds ahead of the event. Historical March maxima average 26–28°C, aligning with current positioning.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Buenos Aires on March 27?
Highest temperature in Buenos Aires on March 27?
28°C 36%
27°C 32%
29°C 20%
26°C 9%
$31,941 Vol.
$31,941 Vol.
23°C or below
1%
24°C
<1%
25°C
1%
26°C
9%
27°C
32%
28°C
36%
29°C
20%
30°C
3%
31°C
2%
32°C
<1%
33°C or higher
<1%
28°C 36%
27°C 32%
29°C 20%
26°C 9%
$31,941 Vol.
$31,941 Vol.
23°C or below
1%
24°C
<1%
25°C
1%
26°C
9%
27°C
32%
28°C
36%
29°C
20%
30°C
3%
31°C
2%
32°C
<1%
33°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: Mar 23, 2026, 6:01 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...Latest ensemble forecast models, including ECMWF and GFS runs updated in the past 24 hours, project Buenos Aires' highest temperature on March 27 at 27–29°C under a persistent high-pressure ridge and light southerly winds limiting advection of warmer air from the north. Trader consensus tilts slightly toward 28°C (34.5% implied probability) over 27°C (31.5%) due to subtle differences in boundary layer mixing and low-level cloud cover predictions, with 29°C viable if daytime heating exceeds model means. Short-range uncertainty remains high, as urban heat island effects and microscale sea breeze influences often diverge from coarser model resolutions. The Servicio Meteorológico Nacional's afternoon update could refine these odds ahead of the event. Historical March maxima average 26–28°C, aligning with current positioning.
Experimental AI-generated summary referencing Polymarket data · Updated
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