Traders assign over 98% implied probability to a Buenos Aires minimum of 7°C or lower on September 17, driven by numerical weather models showing strong radiative cooling overnight under clear to partly cloudy skies, light northeasterly winds, and high pressure favoring temperature drops below seasonal norms. Official guidance from agencies such as the Servicio Meteorológico Nacional currently projects lows near 10–13°C, yet market positioning reflects uncertainty in model consensus and the potential for sharper declines if observed trends or updated runs confirm colder boundary-layer conditions. September climatology supports occasional dips to 6–8°C during spring transitions, with earlier-month cold outbreaks providing recent analogs. Final resolution hinges on verified station data at the daily minimum threshold.
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 17?
7°C 93%
6°C or below 53%
8°C <1%
9°C <1%
6°C or below
53%
7°C
93%
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%
7°C 93%
6°C or below 53%
8°C <1%
9°C <1%
6°C or below
53%
7°C
93%
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 15, 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...Traders assign over 98% implied probability to a Buenos Aires minimum of 7°C or lower on September 17, driven by numerical weather models showing strong radiative cooling overnight under clear to partly cloudy skies, light northeasterly winds, and high pressure favoring temperature drops below seasonal norms. Official guidance from agencies such as the Servicio Meteorológico Nacional currently projects lows near 10–13°C, yet market positioning reflects uncertainty in model consensus and the potential for sharper declines if observed trends or updated runs confirm colder boundary-layer conditions. September climatology supports occasional dips to 6–8°C during spring transitions, with earlier-month cold outbreaks providing recent analogs. Final resolution hinges on verified station data at the daily minimum threshold.
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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