Recent northerly wind patterns and a warming advection ahead of an approaching frontal boundary have driven a sharp temperature rise in Buenos Aires, with official forecasts from sources like the ECMWF and GFS ensembles projecting a Thursday, September 24 high near 22–25 °C under mostly sunny to partly cloudy skies. This short-term trend, building on cooler conditions earlier in the week, underpins the market’s elevated implied probability for 28 °C or higher as the leading outcome, reflecting trader assessment of model spread and potential for localized maxima above guidance. Low precipitation chances and moderate humidity support efficient daytime heating, while historical September variability in the region keeps lower bins (22–26 °C) as viable alternatives pending updated runs.
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 September 24?
25°C 44%
26°C 22%
24°C 20%
27°C 19%
18°C or below
4%
19°C
4%
20°C
3%
21°C
3%
22°C
9%
23°C
18%
24°C
20%
25°C
24%
26°C
22%
27°C
19%
28°C or higher
4%
25°C 44%
26°C 22%
24°C 20%
27°C 19%
18°C or below
4%
19°C
4%
20°C
3%
21°C
3%
22°C
9%
23°C
18%
24°C
20%
25°C
24%
26°C
22%
27°C
19%
28°C or higher
4%
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=saez
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Sep 22, 2026, 8:55 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=saezResolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=saez
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=saezResolver
0x69c47De9D...Recent northerly wind patterns and a warming advection ahead of an approaching frontal boundary have driven a sharp temperature rise in Buenos Aires, with official forecasts from sources like the ECMWF and GFS ensembles projecting a Thursday, September 24 high near 22–25 °C under mostly sunny to partly cloudy skies. This short-term trend, building on cooler conditions earlier in the week, underpins the market’s elevated implied probability for 28 °C or higher as the leading outcome, reflecting trader assessment of model spread and potential for localized maxima above guidance. Low precipitation chances and moderate humidity support efficient daytime heating, while historical September variability in the region keeps lower bins (22–26 °C) as viable alternatives pending updated runs.
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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