Current forecast models from agencies like the National Meteorological Service point to a high near 17°C in Buenos Aires on September 9, driven by northeast winds advecting milder air after an early-month cold spell. Cloud cover increasing to mostly cloudy conditions may limit daytime heating, while light winds and stable high pressure reduce variability. Trader sentiment, with 19°C leading at 34.5% implied probability followed closely by 20°C, reflects model spread and the potential for modest warm advection or clearer skies to push readings higher. Historical September averages near 15–18°C provide context, but short-term uncertainty in exact maximums keeps lower outcomes like 18°C viable and supports the broad distribution across 16–22°C. Updated model runs and official observations will refine these probabilities ahead of resolution.
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 9?
19°C 35%
20°C 23%
18°C 16%
21°C 11%
13°C or below
<1%
14°C
<1%
15°C
1%
16°C
4%
17°C
8%
18°C
16%
19°C
35%
20°C
23%
21°C
11%
22°C
5%
23°C or higher
1%
19°C 35%
20°C 23%
18°C 16%
21°C 11%
13°C or below
<1%
14°C
<1%
15°C
1%
16°C
4%
17°C
8%
18°C
16%
19°C
35%
20°C
23%
21°C
11%
22°C
5%
23°C or higher
1%
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 7, 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...Current forecast models from agencies like the National Meteorological Service point to a high near 17°C in Buenos Aires on September 9, driven by northeast winds advecting milder air after an early-month cold spell. Cloud cover increasing to mostly cloudy conditions may limit daytime heating, while light winds and stable high pressure reduce variability. Trader sentiment, with 19°C leading at 34.5% implied probability followed closely by 20°C, reflects model spread and the potential for modest warm advection or clearer skies to push readings higher. Historical September averages near 15–18°C provide context, but short-term uncertainty in exact maximums keeps lower outcomes like 18°C viable and supports the broad distribution across 16–22°C. Updated model runs and official observations will refine these probabilities ahead of resolution.
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