Official meteorological observations from Mexico City stations recorded a daily maximum of 24°C on September 9, driving the near-certain market consensus around that threshold. This outcome aligns with late-summer climatology for the region, where typical highs range 22–26°C under neutral ENSO conditions and moderate humidity, with no significant heatwave or cold-front passage reported in recent model analyses. Traders weighted the final verified reading heavily once preliminary data emerged, reflecting the resolution criteria tied to official daily maxima rather than forecasts. Minor adjustments to station data or alternative measurement protocols remain the only realistic paths to a different outcome, though such revisions are historically rare for this location and timeframe.
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 9?
Highest temperature in Mexico City on September 9?
24°C 100.0%
15°C or below <1%
16°C <1%
17°C <1%
$25,449 Vol.
$25,449 Vol.
Sep 9, 2026
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
100%
25°C or higher
<1%
24°C 100.0%
15°C or below <1%
16°C <1%
17°C <1%
$25,449 Vol.
$25,449 Vol.
Sep 9, 2026
15°C or below
$125 Vol.
<1%
16°C
$125 Vol.
<1%
17°C
$125 Vol.
<1%
18°C
$125 Vol.
<1%
19°C
$1,429 Vol.
<1%
20°C
$347 Vol.
<1%
21°C
$564 Vol.
<1%
22°C
$3,619 Vol.
<1%
23°C
$3,202 Vol.
<1%
24°C
$9,500 Vol.
100%
25°C or higher
$6,290 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Benito Juárez International Airport Station in degrees Celsius on 9 Sep '26.
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.Official meteorological observations from Mexico City stations recorded a daily maximum of 24°C on September 9, driving the near-certain market consensus around that threshold. This outcome aligns with late-summer climatology for the region, where typical highs range 22–26°C under neutral ENSO conditions and moderate humidity, with no significant heatwave or cold-front passage reported in recent model analyses. Traders weighted the final verified reading heavily once preliminary data emerged, reflecting the resolution criteria tied to official daily maxima rather than forecasts. Minor adjustments to station data or alternative measurement protocols remain the only realistic paths to a different outcome, though such revisions are historically rare for this location and timeframe.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Benito Juárez International Airport Station in degrees Celsius on 9 Sep '26.
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.
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 7, 2026, 8:56 AM ET
Volume
$25,449End Date
Sep 9, 2026Market Opened
Sep 7, 2026, 8:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=mmmxResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Benito Juárez International Airport Station in degrees Celsius on 9 Sep '26.
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.Official meteorological observations from Mexico City stations recorded a daily maximum of 24°C on September 9, driving the near-certain market consensus around that threshold. This outcome aligns with late-summer climatology for the region, where typical highs range 22–26°C under neutral ENSO conditions and moderate humidity, with no significant heatwave or cold-front passage reported in recent model analyses. Traders weighted the final verified reading heavily once preliminary data emerged, reflecting the resolution criteria tied to official daily maxima rather than forecasts. Minor adjustments to station data or alternative measurement protocols remain the only realistic paths to a different outcome, though such revisions are historically rare for this location and timeframe.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Benito Juárez International Airport Station in degrees Celsius on 9 Sep '26.
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.
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.
Volume
$25,449End Date
Sep 9, 2026Market Opened
Sep 7, 2026, 8:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=mmmxResolver
0x69c47De9D...Official meteorological observations from Mexico City stations recorded a daily maximum of 24°C on September 9, driving the near-certain market consensus around that threshold. This outcome aligns with late-summer climatology for the region, where typical highs range 22–26°C under neutral ENSO conditions and moderate humidity, with no significant heatwave or cold-front passage reported in recent model analyses. Traders weighted the final verified reading heavily once preliminary data emerged, reflecting the resolution criteria tied to official daily maxima rather than forecasts. Minor adjustments to station data or alternative measurement protocols remain the only realistic paths to a different outcome, though such revisions are historically rare for this location and timeframe.
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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