Recent forecast models for Mexico City indicate daytime highs near 24°C on September 25, aligning with late-September climatology at 2,240 meters elevation where the rainy season's lingering moisture and afternoon cloud cover typically cap temperatures. Trader emphasis on the 26°C-or-higher outcome at 49% reflects recent model runs showing modest warming potential from clearer skies or reduced rainfall, while the clustered probabilities around 23–25°C capture the most likely range given historical September maxima averaging 23–25°C and current guidance from regional meteorological services. Key resolution factors include official maximum temperature readings and the narrow 48-hour window before landfall of any frontal systems. Updated model consensus and precipitation probabilities will likely refine these implied odds ahead of the date.
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 25?
26°C or higher 48%
25°C 30%
24°C 21%
23°C 19%
16°C or below
2%
17°C
2%
18°C
2%
19°C
3%
20°C
4%
21°C
3%
22°C
3%
23°C
19%
24°C
21%
25°C
30%
26°C or higher
48%
26°C or higher 48%
25°C 30%
24°C 21%
23°C 19%
16°C or below
2%
17°C
2%
18°C
2%
19°C
3%
20°C
4%
21°C
3%
22°C
3%
23°C
19%
24°C
21%
25°C
30%
26°C or higher
48%
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 23, 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 for Mexico City indicate daytime highs near 24°C on September 25, aligning with late-September climatology at 2,240 meters elevation where the rainy season's lingering moisture and afternoon cloud cover typically cap temperatures. Trader emphasis on the 26°C-or-higher outcome at 49% reflects recent model runs showing modest warming potential from clearer skies or reduced rainfall, while the clustered probabilities around 23–25°C capture the most likely range given historical September maxima averaging 23–25°C and current guidance from regional meteorological services. Key resolution factors include official maximum temperature readings and the narrow 48-hour window before landfall of any frontal systems. Updated model consensus and precipitation probabilities will likely refine these implied odds ahead of the date.
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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