Recent official forecasts from sources including the Servicio Meteorológico Nacional and global models point to a maximum temperature of 16–18°C in Buenos Aires on August 28, driven by mostly cloudy morning skies transitioning to clearer conditions, light easterly to southeasterly winds near 10–15 km/h, and surface pressures near 1010–1014 hPa that limit vertical mixing. These conditions, following overnight lows around 9–11°C and dew points of 7–9°C, favor modest daytime warming under limited insolation rather than stronger heating. Market-implied odds favoring 19–20°C reflect trader weighting of model spread and potential for localized clearing that could push peaks 1–2°C above consensus, while lower probabilities for 18°C or below align with the risk of persistent cloud cover or slightly stronger onshore flow. Historical August averages near 16°C provide context, but the narrow clustering around 19–20°C underscores uncertainty in exact afternoon maxima ahead of final observational data.
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 28?
19°C 40%
20°C 35%
21°C 13%
18°C 10%
14°C or below
2%
15°C
2%
16°C
2%
17°C
4%
18°C
10%
19°C
40%
20°C
35%
21°C
13%
22°C
4%
23°C
<1%
24°C or higher
<1%
19°C 40%
20°C 35%
21°C 13%
18°C 10%
14°C or below
2%
15°C
2%
16°C
2%
17°C
4%
18°C
10%
19°C
40%
20°C
35%
21°C
13%
22°C
4%
23°C
<1%
24°C or higher
<1%
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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary 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 26, 2026, 8:55 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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary 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 official forecasts from sources including the Servicio Meteorológico Nacional and global models point to a maximum temperature of 16–18°C in Buenos Aires on August 28, driven by mostly cloudy morning skies transitioning to clearer conditions, light easterly to southeasterly winds near 10–15 km/h, and surface pressures near 1010–1014 hPa that limit vertical mixing. These conditions, following overnight lows around 9–11°C and dew points of 7–9°C, favor modest daytime warming under limited insolation rather than stronger heating. Market-implied odds favoring 19–20°C reflect trader weighting of model spread and potential for localized clearing that could push peaks 1–2°C above consensus, while lower probabilities for 18°C or below align with the risk of persistent cloud cover or slightly stronger onshore flow. Historical August averages near 16°C provide context, but the narrow clustering around 19–20°C underscores uncertainty in exact afternoon maxima ahead of final observational data.
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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