**Recent official forecasts from Argentina’s Servicio Meteorológico Nacional (SMN) and global models indicate a mild spring day for Buenos Aires on September 19, with daytime highs projected in the 22–24°C range under partly to mostly cloudy skies and light northeasterly winds.** Northerly flow is advecting warmer air ahead of an approaching front, supporting temperatures several degrees above the early-spring climatological average near 18–20°C. Trader positioning favoring 24–26°C (combined ~49%) aligns with the upper end of current model guidance and the potential for brief afternoon clearing to boost the daily maximum. Key resolution factors include the exact peak reading from official stations, with minimal precipitation risk keeping conditions stable. Updated model runs and SMN briefings through the morning of the 19th remain the primary near-term catalysts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Buenos Aires on September 19?
25°C 41%
24°C 28%
26°C 18%
23°C 6%
18°C or below
<1%
19°C
<1%
20°C
<1%
21°C
1%
22°C
4%
23°C
6%
24°C
28%
25°C
41%
26°C
18%
27°C
4%
28°C or higher
5%
25°C 41%
24°C 28%
26°C 18%
23°C 6%
18°C or below
<1%
19°C
<1%
20°C
<1%
21°C
1%
22°C
4%
23°C
6%
24°C
28%
25°C
41%
26°C
18%
27°C
4%
28°C or higher
5%
The resolution source for this market will be information from NOAA, specifically the highest 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 17, 2026, 8:55 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 highest 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 official forecasts from Argentina’s Servicio Meteorológico Nacional (SMN) and global models indicate a mild spring day for Buenos Aires on September 19, with daytime highs projected in the 22–24°C range under partly to mostly cloudy skies and light northeasterly winds.** Northerly flow is advecting warmer air ahead of an approaching front, supporting temperatures several degrees above the early-spring climatological average near 18–20°C. Trader positioning favoring 24–26°C (combined ~49%) aligns with the upper end of current model guidance and the potential for brief afternoon clearing to boost the daily maximum. Key resolution factors include the exact peak reading from official stations, with minimal precipitation risk keeping conditions stable. Updated model runs and SMN briefings through the morning of the 19th remain the primary near-term catalysts.
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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