Current ensemble forecasts from sources including the Servicio Meteorológico Nacional point to a September 3 overnight low in Mexico City of 12–14°C, driven by persistent cloud cover, scattered rainfall from the active monsoon pattern, and the city's high elevation of roughly 2,240 meters that enhances radiative cooling under clear intervals. Trader clustering around these outcomes reflects model consensus on moderate humidity and light winds limiting extremes, while slight spreads to 11°C or 15°C stem from uncertainties in exact precipitation timing and cloud thickness that alter nocturnal temperature drops. Updated runs from global and regional models will likely refine the range ahead of 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 3?
17°C 49%
8°C or below 45%
18°C or higher 45%
10°C 39%
8°C or below
45%
9°C
37%
10°C
39%
11°C
25%
12°C
25%
13°C
27%
14°C
27%
15°C
26%
16°C
24%
17°C
49%
18°C or higher
45%
17°C 49%
8°C or below 45%
18°C or higher 45%
10°C 39%
8°C or below
45%
9°C
37%
10°C
39%
11°C
25%
12°C
25%
13°C
27%
14°C
27%
15°C
26%
16°C
24%
17°C
49%
18°C or higher
45%
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 1, 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...Current ensemble forecasts from sources including the Servicio Meteorológico Nacional point to a September 3 overnight low in Mexico City of 12–14°C, driven by persistent cloud cover, scattered rainfall from the active monsoon pattern, and the city's high elevation of roughly 2,240 meters that enhances radiative cooling under clear intervals. Trader clustering around these outcomes reflects model consensus on moderate humidity and light winds limiting extremes, while slight spreads to 11°C or 15°C stem from uncertainties in exact precipitation timing and cloud thickness that alter nocturnal temperature drops. Updated runs from global and regional models will likely refine the range ahead of 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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