Recent forecasts from models like GEM indicate a minimum temperature for Mexico City on September 25 around 9–14°C, aligning with typical late-September nocturnal radiative cooling at the city's high elevation amid variable cloud cover and light winds. Trader sentiment remains closely split between 16°C or higher and 6°C or below because small differences in overnight clearing versus persistent moisture or urban heat retention can shift the low by several degrees, with mid-range outcomes like 13–15°C reflecting model consensus around historical September averages near 10–14°C. Upcoming evening observations and updated runs will clarify steering patterns and dew point trends that determine exact cooling rates before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Mexico City on September 25?
6°C or below 83%
16°C or higher 43%
15°C 26%
13°C 22%
6°C or below
83%
7°C
10%
8°C
10%
9°C
11%
10°C
19%
11°C
19%
12°C
19%
13°C
22%
14°C
22%
15°C
26%
16°C or higher
43%
6°C or below 83%
16°C or higher 43%
15°C 26%
13°C 22%
6°C or below
83%
7°C
10%
8°C
10%
9°C
11%
10°C
19%
11°C
19%
12°C
19%
13°C
22%
14°C
22%
15°C
26%
16°C or higher
43%
The resolution source for this market will be information from NOAA, specifically the lowest 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, 8:29 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 lowest 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 models like GEM indicate a minimum temperature for Mexico City on September 25 around 9–14°C, aligning with typical late-September nocturnal radiative cooling at the city's high elevation amid variable cloud cover and light winds. Trader sentiment remains closely split between 16°C or higher and 6°C or below because small differences in overnight clearing versus persistent moisture or urban heat retention can shift the low by several degrees, with mid-range outcomes like 13–15°C reflecting model consensus around historical September averages near 10–14°C. Upcoming evening observations and updated runs will clarify steering patterns and dew point trends that determine exact cooling rates before 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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