Recent official forecasts from meteorological agencies project a daytime high of 23–24°C for Mexico City on September 15, driven by persistent cloud cover, light easterly winds, and residual moisture from the Pacific monsoon trough typical of late rainy season conditions at 2,240 m elevation. Numerical models show limited diurnal heating due to afternoon convection and high humidity, keeping values aligned with September climatology of 22–25°C. Trader consensus at 24°C (41.5%) and 25°C (31.5%) reflects this model agreement, while lower probabilities for 26°C or above account for potential model underestimation of clearing skies. Updated runs from the Servicio Meteorológico Nacional and global ensembles will refine the exact peak 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 Mexico City on September 15?
24°C 42%
25°C 32%
23°C 21%
26°C 14%
17°C or below
1%
18°C
1%
19°C
1%
20°C
1%
21°C
3%
22°C
6%
23°C
21%
24°C
42%
25°C
32%
26°C
14%
27°C or higher
14%
24°C 42%
25°C 32%
23°C 21%
26°C 14%
17°C or below
1%
18°C
1%
19°C
1%
20°C
1%
21°C
3%
22°C
6%
23°C
21%
24°C
42%
25°C
32%
26°C
14%
27°C or higher
14%
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 13, 2026, 12:58 PM 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...Recent official forecasts from meteorological agencies project a daytime high of 23–24°C for Mexico City on September 15, driven by persistent cloud cover, light easterly winds, and residual moisture from the Pacific monsoon trough typical of late rainy season conditions at 2,240 m elevation. Numerical models show limited diurnal heating due to afternoon convection and high humidity, keeping values aligned with September climatology of 22–25°C. Trader consensus at 24°C (41.5%) and 25°C (31.5%) reflects this model agreement, while lower probabilities for 26°C or above account for potential model underestimation of clearing skies. Updated runs from the Servicio Meteorológico Nacional and global ensembles will refine the exact peak 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
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