Forecast models for Mexico City on September 23 indicate a likely daily high near 23–26°C, with persistent cloud cover, light rain or drizzle, and light easterly winds limiting daytime heating at the city's 2,300-meter elevation. Recent days have featured similar conditions, producing highs of 24–27°C amid variable moisture. This uncertainty in peak temperatures and solar radiation explains the tight market spread between 25°C and 26°C-plus outcomes. Historical late-September averages hover around 22–24°C, providing context for the current consensus. Updated numerical weather prediction runs and official station observations will refine expectations ahead of resolution.
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 23?
Highest temperature in Mexico City on September 23?
25°C 43%
26°C or higher 36%
24°C 20%
23°C 3%
NEW
NEW
Sep 23, 2026
16°C or below
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C
1%
22°C
1%
23°C
3%
24°C
20%
25°C
43%
26°C or higher
36%
25°C 43%
26°C or higher 36%
24°C 20%
23°C 3%
NEW
NEW
Sep 23, 2026
16°C or below
$15 Vol.
<1%
17°C
$25 Vol.
<1%
18°C
$30 Vol.
<1%
19°C
$25 Vol.
<1%
20°C
$25 Vol.
<1%
21°C
$25 Vol.
1%
22°C
$588 Vol.
1%
23°C
$564 Vol.
3%
24°C
$1,411 Vol.
20%
25°C
$1,194 Vol.
43%
26°C or higher
$1,020 Vol.
36%
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 23 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.Forecast models for Mexico City on September 23 indicate a likely daily high near 23–26°C, with persistent cloud cover, light rain or drizzle, and light easterly winds limiting daytime heating at the city's 2,300-meter elevation. Recent days have featured similar conditions, producing highs of 24–27°C amid variable moisture. This uncertainty in peak temperatures and solar radiation explains the tight market spread between 25°C and 26°C-plus outcomes. Historical late-September averages hover around 22–24°C, providing context for the current consensus. Updated numerical weather prediction runs and official station observations will refine expectations ahead of resolution.
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 23 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 21, 2026, 8:56 AM ET
Volume
$4,921End Date
Sep 23, 2026Market Opened
Sep 21, 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 23 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.Forecast models for Mexico City on September 23 indicate a likely daily high near 23–26°C, with persistent cloud cover, light rain or drizzle, and light easterly winds limiting daytime heating at the city's 2,300-meter elevation. Recent days have featured similar conditions, producing highs of 24–27°C amid variable moisture. This uncertainty in peak temperatures and solar radiation explains the tight market spread between 25°C and 26°C-plus outcomes. Historical late-September averages hover around 22–24°C, providing context for the current consensus. Updated numerical weather prediction runs and official station observations will refine expectations ahead of resolution.
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 23 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
$4,921End Date
Sep 23, 2026Market Opened
Sep 21, 2026, 8:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=mmmxResolver
0x69c47De9D...Forecast models for Mexico City on September 23 indicate a likely daily high near 23–26°C, with persistent cloud cover, light rain or drizzle, and light easterly winds limiting daytime heating at the city's 2,300-meter elevation. Recent days have featured similar conditions, producing highs of 24–27°C amid variable moisture. This uncertainty in peak temperatures and solar radiation explains the tight market spread between 25°C and 26°C-plus outcomes. Historical late-September averages hover around 22–24°C, providing context for the current consensus. Updated numerical weather prediction runs and official station observations will refine expectations 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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