**Trader sentiment for the highest temperature in Buenos Aires on September 8 centers on 18°C as the clear favorite (52.5% implied probability), followed by 19°C (25.5%) and 17°C (16%), reflecting model consensus for mild spring conditions under northerly flow.** Official Servicio Meteorológico Nacional guidance and international models (ECMWF, GFS) indicate a transition from the cooler air mass affecting September 7 (highs near 13–14°C) to warmer advection, with light northeast to north winds, low cloud cover, and negligible precipitation risk supporting daytime heating to the upper teens. Historical September averages near 19–20°C provide context, but the current setup—stable high pressure and dry northerly winds—favors a peak slightly below the long-term mean. Minor model spread around 16–19°C keeps probabilities concentrated in that range, with little chance of extremes given the benign steering pattern and absence of strong frontal activity. Final resolution depends on official observations from central Buenos Aires stations.
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 8?
18°C 56%
19°C 26%
17°C 14%
16°C 4%
11°C or below
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
2%
16°C
4%
17°C
14%
18°C
56%
19°C
26%
20°C
3%
21°C or higher
2%
18°C 56%
19°C 26%
17°C 14%
16°C 4%
11°C or below
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
2%
16°C
4%
17°C
14%
18°C
56%
19°C
26%
20°C
3%
21°C or higher
2%
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 6, 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...**Trader sentiment for the highest temperature in Buenos Aires on September 8 centers on 18°C as the clear favorite (52.5% implied probability), followed by 19°C (25.5%) and 17°C (16%), reflecting model consensus for mild spring conditions under northerly flow.** Official Servicio Meteorológico Nacional guidance and international models (ECMWF, GFS) indicate a transition from the cooler air mass affecting September 7 (highs near 13–14°C) to warmer advection, with light northeast to north winds, low cloud cover, and negligible precipitation risk supporting daytime heating to the upper teens. Historical September averages near 19–20°C provide context, but the current setup—stable high pressure and dry northerly winds—favors a peak slightly below the long-term mean. Minor model spread around 16–19°C keeps probabilities concentrated in that range, with little chance of extremes given the benign steering pattern and absence of strong frontal activity. Final resolution depends on official observations from central Buenos Aires stations.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions