Trader sentiment clusters around 24-27°C for Buenos Aires' March 21 high, driven by diverging global weather models amid a transitional autumn pattern. ECMWF ensembles imply a cooler peak near 24°C, factoring in a southward-moving cold front and cooler South Atlantic sea surface temperatures from fading La Niña influences, while GFS runs favor 26-27°C with persistent high-pressure ridging delaying the front. Recent Servicio Meteorológico Nacional updates align closer to 25°C, matching historical late-March averages of 24-26°C at Ezeiza Airport. Tight odds reflect this 2-3°C model spread, with urban heat island effects potentially nudging observations higher; watch tomorrow's 12Z model runs for shifts.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Buenos Aires on March 21?
Highest temperature in Buenos Aires on March 21?
24°C or below 28%
26°C 23%
25°C 20%
27°C 18%
24°C or below
29%
25°C
20%
26°C
23%
27°C
18%
28°C
11%
29°C
5%
30°C
7%
31°C
3%
32°C
2%
33°C
1%
34°C or higher
1%
24°C or below 28%
26°C 23%
25°C 20%
27°C 18%
24°C or below
29%
25°C
20%
26°C
23%
27°C
18%
28°C
11%
29°C
5%
30°C
7%
31°C
3%
32°C
2%
33°C
1%
34°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 17, 2026, 6:02 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 sentiment clusters around 24-27°C for Buenos Aires' March 21 high, driven by diverging global weather models amid a transitional autumn pattern. ECMWF ensembles imply a cooler peak near 24°C, factoring in a southward-moving cold front and cooler South Atlantic sea surface temperatures from fading La Niña influences, while GFS runs favor 26-27°C with persistent high-pressure ridging delaying the front. Recent Servicio Meteorológico Nacional updates align closer to 25°C, matching historical late-March averages of 24-26°C at Ezeiza Airport. Tight odds reflect this 2-3°C model spread, with urban heat island effects potentially nudging observations higher; watch tomorrow's 12Z model runs for shifts.
Experimental AI-generated summary referencing Polymarket data · Updated
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