Recent polar air intrusion across central Argentina has driven cooler-than-average conditions into Buenos Aires, with National Meteorological Service reports noting minima near 3°C and maxima around 11–13°C on September 6 before gradual moderation. Multiple forecast models, including GFS and ECMWF runs, currently project a September 8 daily maximum of 14–17°C under partly cloudy skies and northerly flow, below the long-term September mean high near 19–20°C. This short-term cooling episode, combined with limited warming expected before the date, underpins trader consensus around 17–19°C outcomes while assigning lower probability to extremes above 20°C or below 16°C. Updated model guidance on September 7–8 remains the key near-term variable.
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 September 8?
18°C 53%
19°C 25%
17°C 16%
21°C or higher 8%
11°C or below
<1%
12°C
<1%
13°C
1%
14°C
3%
15°C
4%
16°C
7%
17°C
16%
18°C
53%
19°C
25%
20°C
8%
21°C or higher
8%
18°C 53%
19°C 25%
17°C 16%
21°C or higher 8%
11°C or below
<1%
12°C
<1%
13°C
1%
14°C
3%
15°C
4%
16°C
7%
17°C
16%
18°C
53%
19°C
25%
20°C
8%
21°C or higher
8%
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 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 6, 2026, 8:55 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 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 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 polar air intrusion across central Argentina has driven cooler-than-average conditions into Buenos Aires, with National Meteorological Service reports noting minima near 3°C and maxima around 11–13°C on September 6 before gradual moderation. Multiple forecast models, including GFS and ECMWF runs, currently project a September 8 daily maximum of 14–17°C under partly cloudy skies and northerly flow, below the long-term September mean high near 19–20°C. This short-term cooling episode, combined with limited warming expected before the date, underpins trader consensus around 17–19°C outcomes while assigning lower probability to extremes above 20°C or below 16°C. Updated model guidance on September 7–8 remains the key near-term variable.
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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