**Current forecasts for Mexico City on September 5 point to a daytime high near 24–26°C, aligning with the market’s heaviest positioning on 26°C.** Afternoon convection typical of the peak rainy season often brings cloud cover and scattered showers that limit solar heating at the city’s high elevation of roughly 2,240 meters. Official guidance from agencies like CONAGUA and model runs show mixed signals, with some projecting isolated clearing that could allow brief warming toward 26°C while others keep readings capped near 23–24°C under persistent overcast skies. Historical September averages hover around 23–24°C, so today’s implied probabilities reflect traders weighing the balance between urban heat retention and rain-cooled conditions. New surface observations and updated model guidance later today will likely refine the final recorded maximum.
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 5?
26°C 55%
27°C or higher 25%
25°C 19%
24°C 5%
$9,177 Vol.
$9,177 Vol.
17°C or below
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
5%
25°C
19%
26°C
55%
27°C or higher
25%
26°C 55%
27°C or higher 25%
25°C 19%
24°C 5%
$9,177 Vol.
$9,177 Vol.
17°C or below
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
5%
25°C
19%
26°C
55%
27°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 3, 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...**Current forecasts for Mexico City on September 5 point to a daytime high near 24–26°C, aligning with the market’s heaviest positioning on 26°C.** Afternoon convection typical of the peak rainy season often brings cloud cover and scattered showers that limit solar heating at the city’s high elevation of roughly 2,240 meters. Official guidance from agencies like CONAGUA and model runs show mixed signals, with some projecting isolated clearing that could allow brief warming toward 26°C while others keep readings capped near 23–24°C under persistent overcast skies. Historical September averages hover around 23–24°C, so today’s implied probabilities reflect traders weighing the balance between urban heat retention and rain-cooled conditions. New surface observations and updated model guidance later today will likely refine the final recorded maximum.
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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