Current ensemble forecasts from sources including ECMWF and regional models indicate a Buenos Aires minimum near 12°C on September 24, driven by northerly winds advecting milder air and reduced radiative cooling under partly cloudy skies. Trader sentiment remains closely balanced between the 17°C-or-higher and 7°C-or-below bins because short-range model spreads in wind direction, timing of any frontal passage, and boundary-layer moisture can shift overnight lows by 4–6°C. Late-spring climatology shows typical minima of 10–13°C, providing context for the observed market-implied odds around the 10–12°C range. Updated high-resolution runs and official Servicio Meteorológico Nacional guidance expected within 24 hours will narrow the uncertainty range.
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 24?
7°C or below 94%
17°C or higher 94%
15°C 39%
16°C 39%
7°C or below
94%
8°C
20%
9°C
20%
10°C
21%
11°C
22%
12°C
21%
13°C
20%
14°C
20%
15°C
39%
16°C
39%
17°C or higher
94%
7°C or below 94%
17°C or higher 94%
15°C 39%
16°C 39%
7°C or below
94%
8°C
20%
9°C
20%
10°C
21%
11°C
22%
12°C
21%
13°C
20%
14°C
20%
15°C
39%
16°C
39%
17°C or higher
94%
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 22, 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...Current ensemble forecasts from sources including ECMWF and regional models indicate a Buenos Aires minimum near 12°C on September 24, driven by northerly winds advecting milder air and reduced radiative cooling under partly cloudy skies. Trader sentiment remains closely balanced between the 17°C-or-higher and 7°C-or-below bins because short-range model spreads in wind direction, timing of any frontal passage, and boundary-layer moisture can shift overnight lows by 4–6°C. Late-spring climatology shows typical minima of 10–13°C, providing context for the observed market-implied odds around the 10–12°C range. Updated high-resolution runs and official Servicio Meteorológico Nacional guidance expected within 24 hours will narrow the uncertainty range.
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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