Recent forecast guidance from Argentina’s Servicio Meteorológico Nacional and international models shows a minimum near 11–12 °C for Buenos Aires on September 10, following a sharp cold outbreak earlier in the month that produced a 2.4 °C reading on the 6th. Trader positioning favoring 7 °C or 6 °C or below reflects lingering uncertainty around nocturnal cooling rates under increasing cloud cover and easterly flow, which can enhance radiational cooling or trap colder air near the surface. Historical September minima average about 8–10 °C, so current implied odds embed a modest downside bias relative to the official outlook while acknowledging that any further southward surge of polar air or model underestimation of boundary-layer decoupling could push readings lower before the calendar day ends.
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 10?
6°C or below 91%
8°C <1%
9°C <1%
10°C <1%
$1,154 Vol.
$1,154 Vol.
6°C or below
91%
7°C
-
8°C
<1%
9°C
<1%
10°C
<1%
11°C
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C or higher
<1%
6°C or below 91%
8°C <1%
9°C <1%
10°C <1%
$1,154 Vol.
$1,154 Vol.
6°C or below
91%
7°C
-
8°C
<1%
9°C
<1%
10°C
<1%
11°C
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C or higher
<1%
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 8, 2026, 8:29 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 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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=saezResolver
0x69c47De9D...Recent forecast guidance from Argentina’s Servicio Meteorológico Nacional and international models shows a minimum near 11–12 °C for Buenos Aires on September 10, following a sharp cold outbreak earlier in the month that produced a 2.4 °C reading on the 6th. Trader positioning favoring 7 °C or 6 °C or below reflects lingering uncertainty around nocturnal cooling rates under increasing cloud cover and easterly flow, which can enhance radiational cooling or trap colder air near the surface. Historical September minima average about 8–10 °C, so current implied odds embed a modest downside bias relative to the official outlook while acknowledging that any further southward surge of polar air or model underestimation of boundary-layer decoupling could push readings lower before the calendar day ends.
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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