Forecast models from agencies like the Servicio Meteorológico Nacional indicate a stable high-pressure system over the region on September 18, with light northeasterly winds and increasing cloud cover limiting daytime heating. This setup supports afternoon maxima near 22–23°C in central Buenos Aires, consistent with recent observations of gradual warming from cooler early-September conditions. Minor model spread arises from exact cloud timing and boundary-layer mixing, creating tight probabilities between 22°C and 24°C outcomes. Historical September highs average around 18–20°C, so current guidance reflects a modest positive anomaly without strong advection or clear skies to push readings higher. Updated model runs and official observations through the morning will refine the precise peak before market 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 18?
Highest temperature in Buenos Aires on September 18?
23°C 33%
22°C 26%
24°C 16%
25°C 9%
NEW
NEW
Sep 18, 2026
16°C or below
<1%
17°C
<1%
18°C
<1%
19°C
1%
20°C
1%
21°C
6%
22°C
26%
23°C
33%
24°C
16%
25°C
9%
26°C or higher
4%
23°C 33%
22°C 26%
24°C 16%
25°C 9%
NEW
NEW
Sep 18, 2026
16°C or below
$149 Vol.
<1%
17°C
$149 Vol.
<1%
18°C
$199 Vol.
<1%
19°C
$137 Vol.
1%
20°C
$317 Vol.
1%
21°C
$81 Vol.
6%
22°C
$1,713 Vol.
26%
23°C
$220 Vol.
33%
24°C
$549 Vol.
16%
25°C
$483 Vol.
9%
26°C or higher
$196 Vol.
4%
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 18 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.Forecast models from agencies like the Servicio Meteorológico Nacional indicate a stable high-pressure system over the region on September 18, with light northeasterly winds and increasing cloud cover limiting daytime heating. This setup supports afternoon maxima near 22–23°C in central Buenos Aires, consistent with recent observations of gradual warming from cooler early-September conditions. Minor model spread arises from exact cloud timing and boundary-layer mixing, creating tight probabilities between 22°C and 24°C outcomes. Historical September highs average around 18–20°C, so current guidance reflects a modest positive anomaly without strong advection or clear skies to push readings higher. Updated model runs and official observations through the morning will refine the precise peak before market 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 18 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 16, 2026, 8:55 AM ET
Volume
$3,732End Date
Sep 18, 2026Market Opened
Sep 16, 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 18 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.Forecast models from agencies like the Servicio Meteorológico Nacional indicate a stable high-pressure system over the region on September 18, with light northeasterly winds and increasing cloud cover limiting daytime heating. This setup supports afternoon maxima near 22–23°C in central Buenos Aires, consistent with recent observations of gradual warming from cooler early-September conditions. Minor model spread arises from exact cloud timing and boundary-layer mixing, creating tight probabilities between 22°C and 24°C outcomes. Historical September highs average around 18–20°C, so current guidance reflects a modest positive anomaly without strong advection or clear skies to push readings higher. Updated model runs and official observations through the morning will refine the precise peak before market 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 18 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
$3,732End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=saezResolver
0x69c47De9D...Forecast models from agencies like the Servicio Meteorológico Nacional indicate a stable high-pressure system over the region on September 18, with light northeasterly winds and increasing cloud cover limiting daytime heating. This setup supports afternoon maxima near 22–23°C in central Buenos Aires, consistent with recent observations of gradual warming from cooler early-September conditions. Minor model spread arises from exact cloud timing and boundary-layer mixing, creating tight probabilities between 22°C and 24°C outcomes. Historical September highs average around 18–20°C, so current guidance reflects a modest positive anomaly without strong advection or clear skies to push readings higher. Updated model runs and official observations through the morning will refine the precise peak 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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