Recent atmospheric conditions over southern South America show competing influences on Buenos Aires minimum temperatures for August 28. A weak cold front and variable high-pressure ridge have produced model spreads in guidance from Argentina’s Servicio Meteorológico Nacional and global ensembles, with forecasts ranging from near-freezing values under clear, calm nights to milder readings if cloud cover or northerly flow persists. Historical August climatology places typical overnight lows near 8–10 °C, yet interannual variability tied to Southern Annular Mode phases and local urban heat effects can shift outcomes by several degrees. Traders appear to weigh these forecast uncertainties, with probabilities clustered across thresholds reflecting the narrow margins between expected radiative cooling and modest advection. Updated model runs and observational data through the evening of August 27 will likely refine the range ahead of market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Buenos Aires on August 28?
4°C or below 65%
14°C or higher 55%
5°C 49%
6°C 49%
4°C or below
65%
5°C
49%
6°C
49%
7°C
49%
8°C
25%
9°C
27%
10°C
49%
11°C
2%
12°C
33%
13°C
8%
14°C or higher
55%
4°C or below 65%
14°C or higher 55%
5°C 49%
6°C 49%
4°C or below
65%
5°C
49%
6°C
49%
7°C
49%
8°C
25%
9°C
27%
10°C
49%
11°C
2%
12°C
33%
13°C
8%
14°C or higher
55%
The resolution source for this market will be information from NOAA, specifically the lowest 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, 9:29 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 lowest 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 atmospheric conditions over southern South America show competing influences on Buenos Aires minimum temperatures for August 28. A weak cold front and variable high-pressure ridge have produced model spreads in guidance from Argentina’s Servicio Meteorológico Nacional and global ensembles, with forecasts ranging from near-freezing values under clear, calm nights to milder readings if cloud cover or northerly flow persists. Historical August climatology places typical overnight lows near 8–10 °C, yet interannual variability tied to Southern Annular Mode phases and local urban heat effects can shift outcomes by several degrees. Traders appear to weigh these forecast uncertainties, with probabilities clustered across thresholds reflecting the narrow margins between expected radiative cooling and modest advection. Updated model runs and observational data through the evening of August 27 will likely refine the range ahead of market resolution.
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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