Recent forecasts for Buenos Aires on September 20 show model divergence on overnight minimums, with some guidance favoring a cold frontal passage shifting winds southwest and allowing radiational cooling toward 10–12 °C, while others keep mild northerly flow and lows near 15 °C. This split underpins the near-even market odds between sub-10 °C and 20 °C-plus outcomes. Historical September minima average about 10–11 °C, providing context for the observed uncertainty; official Servicio Meteorológico Nacional updates and refined model runs expected later today will likely resolve the temperature trajectory ahead of the overnight period.
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 20?
Lowest temperature in Buenos Aires on September 20?
10°C or below 85%
20°C or higher 85%
11°C 39%
15°C 39%
NEW
NEW
Sep 20, 2026
10°C or below
85%
11°C
39%
12°C
24%
13°C
22%
14°C
23%
15°C
39%
16°C
39%
17°C
17%
18°C
13%
19°C
13%
20°C or higher
85%
10°C or below 85%
20°C or higher 85%
11°C 39%
15°C 39%
NEW
NEW
Sep 20, 2026
10°C or below
$0 Vol.
85%
11°C
$0 Vol.
39%
12°C
$0 Vol.
24%
13°C
$0 Vol.
22%
14°C
$0 Vol.
23%
15°C
$0 Vol.
39%
16°C
$0 Vol.
39%
17°C
$0 Vol.
17%
18°C
$0 Vol.
13%
19°C
$0 Vol.
13%
20°C or higher
$0 Vol.
85%
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Minister Pistarini Intl Airport Station in degrees Celsius on 20 Sep '26.
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.Recent forecasts for Buenos Aires on September 20 show model divergence on overnight minimums, with some guidance favoring a cold frontal passage shifting winds southwest and allowing radiational cooling toward 10–12 °C, while others keep mild northerly flow and lows near 15 °C. This split underpins the near-even market odds between sub-10 °C and 20 °C-plus outcomes. Historical September minima average about 10–11 °C, providing context for the observed uncertainty; official Servicio Meteorológico Nacional updates and refined model runs expected later today will likely resolve the temperature trajectory ahead of the overnight period.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Minister Pistarini Intl Airport Station in degrees Celsius on 20 Sep '26.
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.
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 18, 2026, 8:29 AM ET
Volume
$0End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 8:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=saezResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Minister Pistarini Intl Airport Station in degrees Celsius on 20 Sep '26.
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.Recent forecasts for Buenos Aires on September 20 show model divergence on overnight minimums, with some guidance favoring a cold frontal passage shifting winds southwest and allowing radiational cooling toward 10–12 °C, while others keep mild northerly flow and lows near 15 °C. This split underpins the near-even market odds between sub-10 °C and 20 °C-plus outcomes. Historical September minima average about 10–11 °C, providing context for the observed uncertainty; official Servicio Meteorológico Nacional updates and refined model runs expected later today will likely resolve the temperature trajectory ahead of the overnight period.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Minister Pistarini Intl Airport Station in degrees Celsius on 20 Sep '26.
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.
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.
Volume
$0End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 8:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=saezResolver
0x69c47De9D...Recent forecasts for Buenos Aires on September 20 show model divergence on overnight minimums, with some guidance favoring a cold frontal passage shifting winds southwest and allowing radiational cooling toward 10–12 °C, while others keep mild northerly flow and lows near 15 °C. This split underpins the near-even market odds between sub-10 °C and 20 °C-plus outcomes. Historical September minima average about 10–11 °C, providing context for the observed uncertainty; official Servicio Meteorológico Nacional updates and refined model runs expected later today will likely resolve the temperature trajectory ahead of the overnight period.
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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