Recent forecast models from agencies including the National Meteorological Service of Argentina indicate mostly sunny conditions and light easterly flow over Buenos Aires on September 10, supporting daytime maxima near 17–19 °C under stable high pressure. Trader consensus has priced 21 °C as the modal outcome because ensemble spreads and historical September variability allow for modest positive departures when boundary-layer mixing strengthens. Recent observations show temperatures tracking slightly above early-month normals amid dry air and minimal cloud cover, keeping probabilities for 20–22 °C outcomes elevated while capping odds for extremes above 23 °C. Updated model runs tomorrow morning will refine the exact peak.
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 10?
21°C 49%
22°C 22%
20°C 18%
23°C 7%
15°C or below
<1%
16°C
<1%
17°C
1%
18°C
3%
19°C
5%
20°C
18%
21°C
49%
22°C
22%
23°C
7%
24°C
2%
25°C or higher
2%
21°C 49%
22°C 22%
20°C 18%
23°C 7%
15°C or below
<1%
16°C
<1%
17°C
1%
18°C
3%
19°C
5%
20°C
18%
21°C
49%
22°C
22%
23°C
7%
24°C
2%
25°C or higher
2%
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 8, 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 forecast models from agencies including the National Meteorological Service of Argentina indicate mostly sunny conditions and light easterly flow over Buenos Aires on September 10, supporting daytime maxima near 17–19 °C under stable high pressure. Trader consensus has priced 21 °C as the modal outcome because ensemble spreads and historical September variability allow for modest positive departures when boundary-layer mixing strengthens. Recent observations show temperatures tracking slightly above early-month normals amid dry air and minimal cloud cover, keeping probabilities for 20–22 °C outcomes elevated while capping odds for extremes above 23 °C. Updated model runs tomorrow morning will refine the exact peak.
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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