Recent forecast models from multiple sources indicate a high near 23–24°C for Mexico City on September 13, driven by persistent cloud cover, light to moderate rain chances (60–75%), and light winds associated with the late wet season. Mexico City’s high elevation (approximately 2,240 m) and urban heat island effects typically moderate daily maxima during this period, aligning with September climatological averages of 23–25°C. The market’s emphasis on 25°C reflects trader assessment of potential brief clearing or model spread that could allow slightly stronger daytime heating, while lower probabilities for 26°C or above account for the low likelihood of significant intensification under current atmospheric conditions. Official resolution will depend on the daily maximum reported by Mexico’s National Meteorological Service.
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 13?
25°C 57%
24°C 29%
26°C 14%
27°C or higher 2%
17°C or below
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°C
<1%
23°C
2%
24°C
29%
25°C
57%
26°C
14%
27°C or higher
2%
25°C 57%
24°C 29%
26°C 14%
27°C or higher 2%
17°C or below
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°C
<1%
23°C
2%
24°C
29%
25°C
57%
26°C
14%
27°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=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 11, 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...Recent forecast models from multiple sources indicate a high near 23–24°C for Mexico City on September 13, driven by persistent cloud cover, light to moderate rain chances (60–75%), and light winds associated with the late wet season. Mexico City’s high elevation (approximately 2,240 m) and urban heat island effects typically moderate daily maxima during this period, aligning with September climatological averages of 23–25°C. The market’s emphasis on 25°C reflects trader assessment of potential brief clearing or model spread that could allow slightly stronger daytime heating, while lower probabilities for 26°C or above account for the low likelihood of significant intensification under current atmospheric conditions. Official resolution will depend on the daily maximum reported by Mexico’s National Meteorological Service.
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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