Latest ensemble forecasts from sources including ECMWF and national meteorological services indicate a high near 17°C in Buenos Aires on September 23 under northerly flow and partly cloudy skies, consistent with early spring warming in the Southern Hemisphere. Northerly winds are expected to advect milder air while limited cloud cover permits modest daytime heating, though model runs show some spread around 16–19°C depending on exact timing of cloud breaks and wind shifts. The market’s strong consensus on 19°C as the mode reflects trader assessment of upside potential from forecast revisions or localized measurement at official stations, with lower probabilities assigned to 17–18°C outcomes aligning more closely with current guidance. No major model disagreements or recent observational shifts have emerged in the past 24 hours to alter this positioning ahead of tomorrow’s resolution.
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 23?
Highest temperature in Buenos Aires on September 23?
19°C 58%
20°C 19%
18°C 18%
17°C 4%
NEW
NEW
Sep 23, 2026
12°C or below
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
2%
17°C
4%
18°C
18%
19°C
58%
20°C
19%
21°C
3%
22°C or higher
2%
19°C 58%
20°C 19%
18°C 18%
17°C 4%
NEW
NEW
Sep 23, 2026
12°C or below
$115 Vol.
<1%
13°C
$110 Vol.
<1%
14°C
$105 Vol.
<1%
15°C
$146 Vol.
<1%
16°C
$102 Vol.
2%
17°C
$306 Vol.
4%
18°C
$963 Vol.
18%
19°C
$2,878 Vol.
58%
20°C
$1,732 Vol.
19%
21°C
$214 Vol.
3%
22°C or higher
$142 Vol.
2%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Minister Pistarini Intl Airport Station in degrees Celsius on 23 Sep '26.
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.Latest ensemble forecasts from sources including ECMWF and national meteorological services indicate a high near 17°C in Buenos Aires on September 23 under northerly flow and partly cloudy skies, consistent with early spring warming in the Southern Hemisphere. Northerly winds are expected to advect milder air while limited cloud cover permits modest daytime heating, though model runs show some spread around 16–19°C depending on exact timing of cloud breaks and wind shifts. The market’s strong consensus on 19°C as the mode reflects trader assessment of upside potential from forecast revisions or localized measurement at official stations, with lower probabilities assigned to 17–18°C outcomes aligning more closely with current guidance. No major model disagreements or recent observational shifts have emerged in the past 24 hours to alter this positioning ahead of tomorrow’s resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Minister Pistarini Intl Airport Station in degrees Celsius on 23 Sep '26.
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.
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 21, 2026, 8:55 AM ET
Volume
$6,813End Date
Sep 23, 2026Market Opened
Sep 21, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=saezResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Minister Pistarini Intl Airport Station in degrees Celsius on 23 Sep '26.
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.Latest ensemble forecasts from sources including ECMWF and national meteorological services indicate a high near 17°C in Buenos Aires on September 23 under northerly flow and partly cloudy skies, consistent with early spring warming in the Southern Hemisphere. Northerly winds are expected to advect milder air while limited cloud cover permits modest daytime heating, though model runs show some spread around 16–19°C depending on exact timing of cloud breaks and wind shifts. The market’s strong consensus on 19°C as the mode reflects trader assessment of upside potential from forecast revisions or localized measurement at official stations, with lower probabilities assigned to 17–18°C outcomes aligning more closely with current guidance. No major model disagreements or recent observational shifts have emerged in the past 24 hours to alter this positioning ahead of tomorrow’s resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Minister Pistarini Intl Airport Station in degrees Celsius on 23 Sep '26.
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.
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.
Volume
$6,813End Date
Sep 23, 2026Market Opened
Sep 21, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=saezResolver
0x69c47De9D...Latest ensemble forecasts from sources including ECMWF and national meteorological services indicate a high near 17°C in Buenos Aires on September 23 under northerly flow and partly cloudy skies, consistent with early spring warming in the Southern Hemisphere. Northerly winds are expected to advect milder air while limited cloud cover permits modest daytime heating, though model runs show some spread around 16–19°C depending on exact timing of cloud breaks and wind shifts. The market’s strong consensus on 19°C as the mode reflects trader assessment of upside potential from forecast revisions or localized measurement at official stations, with lower probabilities assigned to 17–18°C outcomes aligning more closely with current guidance. No major model disagreements or recent observational shifts have emerged in the past 24 hours to alter this positioning ahead of tomorrow’s 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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