Trader consensus on Polymarket overwhelmingly favors 29°C or higher as Buenos Aires' maximum temperature on March 18, driven by ensemble forecasts from leading models like GFS and ECMWF projecting highs of 35–38°C amid a persistent heat dome over southern South America. Official data from Argentina's Servicio Meteorológico Nacional corroborates this, citing anomalously high sea surface temperatures in the South Atlantic fueling convective instability and suppressed cloud cover, with historical March peaks rarely dipping below 30°C during similar synoptic patterns. This positioning aligns with verified satellite observations of extreme heat across the pampas region. Realistic challenges include an unforeseen polar outbreak or mesoscale convective system introducing cooling advection, though probabilities remain under 1% per model ensembles.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Buenos Aires on March 18?
Highest temperature in Buenos Aires on March 18?
29°C or higher 100.0%
26°C <1%
27°C <1%
28°C <1%
$119,214 Vol.
$119,214 Vol.
26°C
<1%
27°C
<1%
28°C
<1%
29°C or higher
100%
29°C or higher 100.0%
26°C <1%
27°C <1%
28°C <1%
$119,214 Vol.
$119,214 Vol.
26°C
<1%
27°C
<1%
28°C
<1%
29°C or higher
100%
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 14, 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...Trader consensus on Polymarket overwhelmingly favors 29°C or higher as Buenos Aires' maximum temperature on March 18, driven by ensemble forecasts from leading models like GFS and ECMWF projecting highs of 35–38°C amid a persistent heat dome over southern South America. Official data from Argentina's Servicio Meteorológico Nacional corroborates this, citing anomalously high sea surface temperatures in the South Atlantic fueling convective instability and suppressed cloud cover, with historical March peaks rarely dipping below 30°C during similar synoptic patterns. This positioning aligns with verified satellite observations of extreme heat across the pampas region. Realistic challenges include an unforeseen polar outbreak or mesoscale convective system introducing cooling advection, though probabilities remain under 1% per model ensembles.
Experimental AI-generated summary referencing Polymarket data · Updated
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