Recent forecast guidance from major models points to a daily maximum near 17–19°C in Buenos Aires on August 31 under partly cloudy skies and light easterly flow typical of late Southern Hemisphere winter. This stable pattern, with no strong warm advection or clear-sky radiative warming expected, keeps the most probable outcomes clustered around 19–21°C while limiting upside risk above 22°C. Ensemble spreads remain modest because surface pressure gradients are weak and dew points are forecast to stay near 11–13°C, moderating daytime peaks. Traders therefore assign roughly equal weight to the 19°C, 20°C, and 21°C bins, reflecting residual uncertainty in the precise timing of any afternoon clearing versus lingering low-level moisture.
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 August 31?
20°C 35%
21°C 32%
19°C 26%
22°C 12%
14°C or below
<1%
15°C
<1%
16°C
1%
17°C
5%
18°C
6%
19°C
26%
20°C
35%
21°C
32%
22°C
12%
23°C
4%
24°C or higher
4%
20°C 35%
21°C 32%
19°C 26%
22°C 12%
14°C or below
<1%
15°C
<1%
16°C
1%
17°C
5%
18°C
6%
19°C
26%
20°C
35%
21°C
32%
22°C
12%
23°C
4%
24°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.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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: Aug 29, 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.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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 forecast guidance from major models points to a daily maximum near 17–19°C in Buenos Aires on August 31 under partly cloudy skies and light easterly flow typical of late Southern Hemisphere winter. This stable pattern, with no strong warm advection or clear-sky radiative warming expected, keeps the most probable outcomes clustered around 19–21°C while limiting upside risk above 22°C. Ensemble spreads remain modest because surface pressure gradients are weak and dew points are forecast to stay near 11–13°C, moderating daytime peaks. Traders therefore assign roughly equal weight to the 19°C, 20°C, and 21°C bins, reflecting residual uncertainty in the precise timing of any afternoon clearing versus lingering low-level moisture.
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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