Ensemble weather models from ECMWF and GFS, as tracked by official forecasts from Argentina's Servicio Meteorológico Nacional (SMN), drive the tight race between 27°C (28%) and 28°C (25%) for Buenos Aires' highest temperature on March 27, projecting peaks around 27-29°C amid southerly winds moderating earlier heat. Recent model updates indicate a slight downward shift from southerly flow introducing cooler Atlantic air, differentiating these outcomes from warmer 29-30°C bets (17% and 12.5%), while historical March climatology—averaging 26-28°C highs—supports the consensus against extremes below 25°C or above 31°C. Uncertainty persists in boundary layer mixing and cloud development, with SMN's afternoon update pivotal for final trader positioning.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Buenos Aires on March 27?
Highest temperature in Buenos Aires on March 27?
27°C 28%
28°C 25%
29°C 17%
30°C 13%
23°C or below
2%
24°C
2%
25°C
4%
26°C
11%
27°C
28%
28°C
25%
29°C
17%
30°C
13%
31°C
3%
32°C
2%
33°C or higher
2%
27°C 28%
28°C 25%
29°C 17%
30°C 13%
23°C or below
2%
24°C
2%
25°C
4%
26°C
11%
27°C
28%
28°C
25%
29°C
17%
30°C
13%
31°C
3%
32°C
2%
33°C or higher
2%
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...Resolution Source
https://www.wunderground.com/history/daily/ar/ezeiza/SAEZResolver
0x69c47De9D...Ensemble weather models from ECMWF and GFS, as tracked by official forecasts from Argentina's Servicio Meteorológico Nacional (SMN), drive the tight race between 27°C (28%) and 28°C (25%) for Buenos Aires' highest temperature on March 27, projecting peaks around 27-29°C amid southerly winds moderating earlier heat. Recent model updates indicate a slight downward shift from southerly flow introducing cooler Atlantic air, differentiating these outcomes from warmer 29-30°C bets (17% and 12.5%), while historical March climatology—averaging 26-28°C highs—supports the consensus against extremes below 25°C or above 31°C. Uncertainty persists in boundary layer mixing and cloud development, with SMN's afternoon update pivotal for final trader positioning.
Experimental AI-generated summary referencing Polymarket data · Updated
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