Forecasts for Mexico City on September 9 point to a daytime high near 23–25°C, driven by the city’s 2,240 m elevation that caps baseline warmth and by widespread cloud cover plus convective showers expected during peak heating hours. These conditions limit solar insolation and promote evaporative cooling, keeping values close to the September climatological average of roughly 24°C. Recent model runs from multiple sources show consistent afternoon rain probabilities above 60 percent, reducing the chance of exceeding 26°C while making 24°C the modal outcome. Traders appear to weigh this short-term consensus heavily, with implied probabilities clustering on 23–25°C outcomes ahead of any final observational data.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Mexico City on September 9?
24°C 41%
25°C or higher 25%
23°C 23%
22°C 7%
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
2%
20°C
2%
21°C
4%
22°C
7%
23°C
23%
24°C
41%
25°C or higher
25%
24°C 41%
25°C or higher 25%
23°C 23%
22°C 7%
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
2%
20°C
2%
21°C
4%
22°C
7%
23°C
23%
24°C
41%
25°C or higher
25%
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=mmmx
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, 8:56 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=mmmxResolver
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=mmmx
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=mmmxResolver
0x69c47De9D...Forecasts for Mexico City on September 9 point to a daytime high near 23–25°C, driven by the city’s 2,240 m elevation that caps baseline warmth and by widespread cloud cover plus convective showers expected during peak heating hours. These conditions limit solar insolation and promote evaporative cooling, keeping values close to the September climatological average of roughly 24°C. Recent model runs from multiple sources show consistent afternoon rain probabilities above 60 percent, reducing the chance of exceeding 26°C while making 24°C the modal outcome. Traders appear to weigh this short-term consensus heavily, with implied probabilities clustering on 23–25°C outcomes ahead of any final observational data.
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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