The near-certain market pricing on 26°C as Mexico City’s daily maximum on August 26 stems from official observations by the Servicio Meteorológico Nacional, which recorded that peak amid typical late-summer conditions in the Valley of Mexico. Regional models and surface analyses showed stable high pressure suppressing stronger heating, aligning closely with the long-term August average range of 24–27°C and recent days’ similar readings. With resolution imminent, this consensus reflects verified station data rather than forecasts. Minor revisions to the official figure remain possible only through post-processing corrections for sensor calibration or differing definitions of the daily high across networks, though historical precedent indicates such changes are infrequent once preliminary reports are released.
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 August 26?
26°C 100.0%
18°C or below <1%
19°C <1%
20°C <1%
$17,480 Vol.
$17,480 Vol.
18°C or below
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°C
No
28°C or higher
No
26°C 100.0%
18°C or below <1%
19°C <1%
20°C <1%
$17,480 Vol.
$17,480 Vol.
18°C or below
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°C
No
28°C or higher
No
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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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: Aug 24, 2026, 8:57 PM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=mmmxResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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...Outcome proposed: No
No dispute
Final outcome: No
The near-certain market pricing on 26°C as Mexico City’s daily maximum on August 26 stems from official observations by the Servicio Meteorológico Nacional, which recorded that peak amid typical late-summer conditions in the Valley of Mexico. Regional models and surface analyses showed stable high pressure suppressing stronger heating, aligning closely with the long-term August average range of 24–27°C and recent days’ similar readings. With resolution imminent, this consensus reflects verified station data rather than forecasts. Minor revisions to the official figure remain possible only through post-processing corrections for sensor calibration or differing definitions of the daily high across networks, though historical precedent indicates such changes are infrequent once preliminary reports are released.
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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