Recent cold air advection from Patagonia produced a sharp minimum of 0°C in Buenos Aires on August 22, but ensemble guidance from ECMWF and GFS now indicates moderating conditions for the 25th with overnight lows most likely between 6–8°C. Key variables include the strength and timing of any residual southerly flow, boundary-layer mixing under light winds, and the degree of nocturnal radiative cooling beneath variable cloud cover. Clearer skies would favor readings near or below 5°C, while increased moisture or stronger mixing could hold minima closer to 9–12°C. Historical late-August variability and the narrow spread among model runs explain the evenly distributed market probabilities across the 2–12°C brackets.
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 25?
2°C or below 59%
12°C or higher 59%
10°C 45%
11°C 45%
2°C or below
59%
3°C
26%
4°C
27%
5°C
27%
6°C
28%
7°C
26%
8°C
25%
9°C
24%
10°C
45%
11°C
45%
12°C or higher
59%
2°C or below 59%
12°C or higher 59%
10°C 45%
11°C 45%
2°C or below
59%
3°C
26%
4°C
27%
5°C
27%
6°C
28%
7°C
26%
8°C
25%
9°C
24%
10°C
45%
11°C
45%
12°C or higher
59%
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
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 23, 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
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 cold air advection from Patagonia produced a sharp minimum of 0°C in Buenos Aires on August 22, but ensemble guidance from ECMWF and GFS now indicates moderating conditions for the 25th with overnight lows most likely between 6–8°C. Key variables include the strength and timing of any residual southerly flow, boundary-layer mixing under light winds, and the degree of nocturnal radiative cooling beneath variable cloud cover. Clearer skies would favor readings near or below 5°C, while increased moisture or stronger mixing could hold minima closer to 9–12°C. Historical late-August variability and the narrow spread among model runs explain the evenly distributed market probabilities across the 2–12°C brackets.
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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