Recent forecasts from multiple models for Mexico City on September 9 indicate a high near 22–24°C amid the ongoing rainy season, with afternoon cloud cover, scattered showers, and moderate humidity expected to cap daytime peaks. This aligns with typical September climatology at the city's high elevation, where convective activity and northeasterly flow often suppress maximum temperatures below seasonal averages. Updated runs show no significant warming trend or clear-sky periods that would support 25°C or higher, while persistent moisture keeps the distribution centered on 23–24°C. Traders appear to weigh these model consensus outputs against historical September highs, which rarely exceed 24°C without unusual subsidence or reduced rainfall.
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 30%
23°C 22%
22°C 6%
15°C or below
3%
16°C
3%
17°C
3%
18°C
2%
19°C
4%
20°C
2%
21°C
3%
22°C
6%
23°C
22%
24°C
41%
25°C or higher
25%
24°C 41%
25°C or higher 30%
23°C 22%
22°C 6%
15°C or below
3%
16°C
3%
17°C
3%
18°C
2%
19°C
4%
20°C
2%
21°C
3%
22°C
6%
23°C
22%
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...Recent forecasts from multiple models for Mexico City on September 9 indicate a high near 22–24°C amid the ongoing rainy season, with afternoon cloud cover, scattered showers, and moderate humidity expected to cap daytime peaks. This aligns with typical September climatology at the city's high elevation, where convective activity and northeasterly flow often suppress maximum temperatures below seasonal averages. Updated runs show no significant warming trend or clear-sky periods that would support 25°C or higher, while persistent moisture keeps the distribution centered on 23–24°C. Traders appear to weigh these model consensus outputs against historical September highs, which rarely exceed 24°C without unusual subsidence or reduced rainfall.
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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