Forecast uncertainty around the overnight minimum in Buenos Aires on August 28 stems from diverging model guidance on cold-air advection and radiational cooling under clearing skies. With probabilities clustered tightly between 7°C and 10°C, traders are weighing the National Meteorological Service and global ensemble runs that differ on the exact timing of a frontal passage and boundary-layer wind speeds, which control how much heat is lost after sunset. Historical August minima average near 8–9°C, providing a baseline, yet recent model shifts in 850-hPa temperatures and dewpoint depressions have narrowed the expected range. Upcoming 00Z and 12Z model cycles plus local observations from the Aeroparque station will likely refine the outcome before 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?
9°C 31%
7°C 28%
8°C 27%
10°C 24%
4°C or below
11%
5°C
20%
6°C
24%
7°C
28%
8°C
27%
9°C
31%
10°C
24%
11°C
2%
12°C
9%
13°C
8%
14°C or higher
9%
9°C 31%
7°C 28%
8°C 27%
10°C 24%
4°C or below
11%
5°C
20%
6°C
24%
7°C
28%
8°C
27%
9°C
31%
10°C
24%
11°C
2%
12°C
9%
13°C
8%
14°C or higher
9%
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...Forecast uncertainty around the overnight minimum in Buenos Aires on August 28 stems from diverging model guidance on cold-air advection and radiational cooling under clearing skies. With probabilities clustered tightly between 7°C and 10°C, traders are weighing the National Meteorological Service and global ensemble runs that differ on the exact timing of a frontal passage and boundary-layer wind speeds, which control how much heat is lost after sunset. Historical August minima average near 8–9°C, providing a baseline, yet recent model shifts in 850-hPa temperatures and dewpoint depressions have narrowed the expected range. Upcoming 00Z and 12Z model cycles plus local observations from the Aeroparque station will likely refine the outcome before 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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