Recent passage of a cold front across central Argentina has advected cooler maritime air southward, setting up below-normal overnight minimums for Buenos Aires on September 4. Multiple model runs and official guidance indicate clearing skies and light southwest winds after frontal rain on September 2–3, promoting efficient radiative cooling under the seasonal spring transition. Forecast lows cluster between 7–9 °C, consistent with the Servicio Meteorológico Nacional’s outlook for cooler-than-average temperatures across the central region this spring, though model spread and any residual moisture could allow brief excursions near or below 5 °C. Trader emphasis on the 5 °C-or-below outcome at 49.5 % implied probability reflects these synoptic factors and the short time horizon until 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 4?
5°C or below 99%
15°C or higher 59%
6°C 48%
7°C 48%
5°C or below
99%
6°C
48%
7°C
48%
8°C
48%
9°C
25%
10°C
10%
11°C
37%
12°C
37%
13°C
19%
14°C
19%
15°C or higher
59%
5°C or below 99%
15°C or higher 59%
6°C 48%
7°C 48%
5°C or below
99%
6°C
48%
7°C
48%
8°C
48%
9°C
25%
10°C
10%
11°C
37%
12°C
37%
13°C
19%
14°C
19%
15°C or higher
59%
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 2, 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 passage of a cold front across central Argentina has advected cooler maritime air southward, setting up below-normal overnight minimums for Buenos Aires on September 4. Multiple model runs and official guidance indicate clearing skies and light southwest winds after frontal rain on September 2–3, promoting efficient radiative cooling under the seasonal spring transition. Forecast lows cluster between 7–9 °C, consistent with the Servicio Meteorológico Nacional’s outlook for cooler-than-average temperatures across the central region this spring, though model spread and any residual moisture could allow brief excursions near or below 5 °C. Trader emphasis on the 5 °C-or-below outcome at 49.5 % implied probability reflects these synoptic factors and the short time horizon until resolution.
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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