Recent forecasts from multiple models place Buenos Aires highs for August 30 near 16–18°C under stable post-frontal conditions with light easterly or northeasterly winds and limited cloud cover, following earlier showers that cleared by late August. Winter temperatures in the region are modulated by polar air masses from the south versus occasional warmer incursions from the north, plus urban heat-island effects and solar heating under high-pressure influence. The tight clustering of market-implied odds around 18–22°C reflects genuine short-term forecast spread from model differences in cloud timing, wind shifts, and boundary-layer mixing, while the low probabilities below 17°C or at 23°C+ align with climatological rarity of extremes this late in winter and current observational trends showing no strong warming signal.
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 30?
21°C 34%
20°C 28%
22°C 15%
18°C 10%
13°C or below
1%
14°C
1%
15°C
1%
16°C
3%
17°C
3%
18°C
10%
19°C
5%
20°C
28%
21°C
34%
22°C
15%
23°C or higher
5%
21°C 34%
20°C 28%
22°C 15%
18°C 10%
13°C or below
1%
14°C
1%
15°C
1%
16°C
3%
17°C
3%
18°C
10%
19°C
5%
20°C
28%
21°C
34%
22°C
15%
23°C or higher
5%
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 28, 2026, 2:55 PM 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 forecasts from multiple models place Buenos Aires highs for August 30 near 16–18°C under stable post-frontal conditions with light easterly or northeasterly winds and limited cloud cover, following earlier showers that cleared by late August. Winter temperatures in the region are modulated by polar air masses from the south versus occasional warmer incursions from the north, plus urban heat-island effects and solar heating under high-pressure influence. The tight clustering of market-implied odds around 18–22°C reflects genuine short-term forecast spread from model differences in cloud timing, wind shifts, and boundary-layer mixing, while the low probabilities below 17°C or at 23°C+ align with climatological rarity of extremes this late in winter and current observational trends showing no strong warming signal.
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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