Recent forecast models from sources like Yr.no and WindBorne show Mexico City's overnight minimum on September 7 likely near 13–14°C under persistent cloud cover and light rain, limiting radiative cooling at the city's 2,240-meter elevation. High humidity and southerly flow tied to the rainy season further moderate temperatures compared to drier periods, reducing the chance of sharp drops below 11°C or spikes above 17°C. Trader consensus across closely matched outcomes reflects genuine uncertainty in model runs, with new ECMWF and GFS updates expected to refine steering patterns and precipitation timing 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 7?
18°C or higher 69%
8°C or below 59%
14°C 50%
11°C 49%
8°C or below
59%
9°C
26%
10°C
26%
11°C
49%
12°C
49%
13°C
49%
14°C
50%
15°C
49%
16°C
49%
17°C
49%
18°C or higher
69%
18°C or higher 69%
8°C or below 59%
14°C 50%
11°C 49%
8°C or below
59%
9°C
26%
10°C
26%
11°C
49%
12°C
49%
13°C
49%
14°C
50%
15°C
49%
16°C
49%
17°C
49%
18°C or higher
69%
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 5, 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 forecast models from sources like Yr.no and WindBorne show Mexico City's overnight minimum on September 7 likely near 13–14°C under persistent cloud cover and light rain, limiting radiative cooling at the city's 2,240-meter elevation. High humidity and southerly flow tied to the rainy season further moderate temperatures compared to drier periods, reducing the chance of sharp drops below 11°C or spikes above 17°C. Trader consensus across closely matched outcomes reflects genuine uncertainty in model runs, with new ECMWF and GFS updates expected to refine steering patterns and precipitation timing 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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