Recent cold air advection over central Argentina, combined with high pressure and mostly clear to partly cloudy skies, has set the stage for strong overnight radiative cooling in Buenos Aires on September 7. Official forecasts from sources such as the Servicio Meteorológico Nacional and numerical models show minimum temperatures likely falling to 3–6 °C in the pre-dawn hours, with light northerly winds limiting mixing. Trader emphasis on the 3 °C and 4 °C outcomes reflects these conditions and historical analogs for early-spring cold snaps, while the notable 8 °C probability captures potential for slightly milder boundary-layer air if cloud cover increases or winds strengthen. The 1 °C or below bucket accounts for residual model spread and urban heat-island variability. New model runs and the first hourly observations after midnight will refine the exact minimum before 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 September 7?
8°C 50%
4°C 38%
3°C 30%
1°C or below 18%
1°C or below
16%
2°C
14%
3°C
29%
4°C
26%
5°C
5%
6°C
5%
7°C
14%
8°C
50%
9°C
2%
10°C
2%
11°C or higher
1%
8°C 50%
4°C 38%
3°C 30%
1°C or below 18%
1°C or below
16%
2°C
14%
3°C
29%
4°C
26%
5°C
5%
6°C
5%
7°C
14%
8°C
50%
9°C
2%
10°C
2%
11°C or higher
1%
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 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.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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: Sep 5, 2026, 8:29 AM 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 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.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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 over central Argentina, combined with high pressure and mostly clear to partly cloudy skies, has set the stage for strong overnight radiative cooling in Buenos Aires on September 7. Official forecasts from sources such as the Servicio Meteorológico Nacional and numerical models show minimum temperatures likely falling to 3–6 °C in the pre-dawn hours, with light northerly winds limiting mixing. Trader emphasis on the 3 °C and 4 °C outcomes reflects these conditions and historical analogs for early-spring cold snaps, while the notable 8 °C probability captures potential for slightly milder boundary-layer air if cloud cover increases or winds strengthen. The 1 °C or below bucket accounts for residual model spread and urban heat-island variability. New model runs and the first hourly observations after midnight will refine the exact minimum before 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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