Recent Antarctic air intrusions have driven sharp cooling across central Argentina, with official models and station data showing Buenos Aires overnight lows near 4–7 °C on September 7 amid clearing skies and light northerly flow after the frontal passage. Radiative cooling under high pressure supports the potential for sub-5 °C readings if winds remain calm, while any earlier mixing or cloud cover could hold minima above 8 °C. Ensemble guidance from regional meteorological services indicates modest warming relative to the September 5–6 peak, yet residual polar air keeps the 1 °C-or-below outcome favored in trader positioning. Updated NHC-style regional forecasts and surface observations expected through the weekend will refine the exact daily minimum before market resolution.
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 7?
Lowest temperature in Buenos Aires on September 7?
11°C or higher 59%
2°C 49%
3°C 49%
4°C 49%
NEW
NEW
Sep 7, 2026
1°C or below
-
2°C
49%
3°C
49%
4°C
49%
5°C
25%
6°C
8%
7°C
19%
8°C
16%
9°C
16%
10°C
20%
11°C or higher
59%
11°C or higher 59%
2°C 49%
3°C 49%
4°C 49%
NEW
NEW
Sep 7, 2026
1°C or below
$6 Vol.
-
2°C
$0 Vol.
49%
3°C
$0 Vol.
49%
4°C
$0 Vol.
49%
5°C
$0 Vol.
25%
6°C
$202 Vol.
8%
7°C
$217 Vol.
19%
8°C
$0 Vol.
16%
9°C
$0 Vol.
16%
10°C
$0 Vol.
20%
11°C or higher
$0 Vol.
59%
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 7 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 Antarctic air intrusions have driven sharp cooling across central Argentina, with official models and station data showing Buenos Aires overnight lows near 4–7 °C on September 7 amid clearing skies and light northerly flow after the frontal passage. Radiative cooling under high pressure supports the potential for sub-5 °C readings if winds remain calm, while any earlier mixing or cloud cover could hold minima above 8 °C. Ensemble guidance from regional meteorological services indicates modest warming relative to the September 5–6 peak, yet residual polar air keeps the 1 °C-or-below outcome favored in trader positioning. Updated NHC-style regional forecasts and surface observations expected through the weekend will refine the exact daily minimum before market resolution.
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 7 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 5, 2026, 8:29 AM ET
Volume
$425End Date
Sep 7, 2026Market Opened
Sep 5, 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 7 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 Antarctic air intrusions have driven sharp cooling across central Argentina, with official models and station data showing Buenos Aires overnight lows near 4–7 °C on September 7 amid clearing skies and light northerly flow after the frontal passage. Radiative cooling under high pressure supports the potential for sub-5 °C readings if winds remain calm, while any earlier mixing or cloud cover could hold minima above 8 °C. Ensemble guidance from regional meteorological services indicates modest warming relative to the September 5–6 peak, yet residual polar air keeps the 1 °C-or-below outcome favored in trader positioning. Updated NHC-style regional forecasts and surface observations expected through the weekend will refine the exact daily minimum before market resolution.
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 7 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
$425End Date
Sep 7, 2026Market Opened
Sep 5, 2026, 8:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=saezResolver
0x69c47De9D...Recent Antarctic air intrusions have driven sharp cooling across central Argentina, with official models and station data showing Buenos Aires overnight lows near 4–7 °C on September 7 amid clearing skies and light northerly flow after the frontal passage. Radiative cooling under high pressure supports the potential for sub-5 °C readings if winds remain calm, while any earlier mixing or cloud cover could hold minima above 8 °C. Ensemble guidance from regional meteorological services indicates modest warming relative to the September 5–6 peak, yet residual polar air keeps the 1 °C-or-below outcome favored in trader positioning. Updated NHC-style regional forecasts and surface observations expected through the weekend will refine the exact daily minimum 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
Beware of external links.
Beware of external links.
Frequently Asked Questions