**Trader sentiment for the lowest temperature in Mexico City on September 20 centers on the 13°C outcome at 90% implied probability, reflecting official station observations of overnight lows near that level.** Mexico City's high elevation around 2,240–2,300 meters promotes rapid radiative cooling after sunset, but September's typical cloud cover, light winds, and humid air from the rainy season moderate extremes and keep minimums close to seasonal averages of 10–12°C. Recent model runs and real-time data from sources like the Mexico City station showed steady overnight temperatures in the 13–14°C range with no significant cold advection or clear-sky enhancement, aligning trader consensus with observed conditions rather than rarer sub-10°C scenarios. Upcoming resolution will hinge on final verified minimums from authoritative meteorological records.
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 20?
Lowest temperature in Mexico City on September 20?
13°C 99%
7°C or below 94%
12°C 94%
11°C 92%
$924 Vol.
$924 Vol.
Sep 20, 2026
7°C or below
94%
8°C
14%
9°C
11%
10°C
13%
11°C
92%
12°C
94%
13°C
99%
14°C
<1%
15°C
<1%
16°C
<1%
17°C or higher
<1%
13°C 99%
7°C or below 94%
12°C 94%
11°C 92%
$924 Vol.
$924 Vol.
Sep 20, 2026
7°C or below
$0 Vol.
94%
8°C
$0 Vol.
14%
9°C
$0 Vol.
11%
10°C
$0 Vol.
13%
11°C
$0 Vol.
92%
12°C
$0 Vol.
94%
13°C
$210 Vol.
99%
14°C
$139 Vol.
<1%
15°C
$349 Vol.
<1%
16°C
$204 Vol.
<1%
17°C or higher
$22 Vol.
<1%
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Benito Juárez International Airport Station in degrees Celsius on 20 Sep '26.
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.**Trader sentiment for the lowest temperature in Mexico City on September 20 centers on the 13°C outcome at 90% implied probability, reflecting official station observations of overnight lows near that level.** Mexico City's high elevation around 2,240–2,300 meters promotes rapid radiative cooling after sunset, but September's typical cloud cover, light winds, and humid air from the rainy season moderate extremes and keep minimums close to seasonal averages of 10–12°C. Recent model runs and real-time data from sources like the Mexico City station showed steady overnight temperatures in the 13–14°C range with no significant cold advection or clear-sky enhancement, aligning trader consensus with observed conditions rather than rarer sub-10°C scenarios. Upcoming resolution will hinge on final verified minimums from authoritative meteorological records.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Benito Juárez International Airport Station in degrees Celsius on 20 Sep '26.
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.
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 18, 2026, 8:29 AM ET
Volume
$924End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 8:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=mmmxResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Benito Juárez International Airport Station in degrees Celsius on 20 Sep '26.
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.**Trader sentiment for the lowest temperature in Mexico City on September 20 centers on the 13°C outcome at 90% implied probability, reflecting official station observations of overnight lows near that level.** Mexico City's high elevation around 2,240–2,300 meters promotes rapid radiative cooling after sunset, but September's typical cloud cover, light winds, and humid air from the rainy season moderate extremes and keep minimums close to seasonal averages of 10–12°C. Recent model runs and real-time data from sources like the Mexico City station showed steady overnight temperatures in the 13–14°C range with no significant cold advection or clear-sky enhancement, aligning trader consensus with observed conditions rather than rarer sub-10°C scenarios. Upcoming resolution will hinge on final verified minimums from authoritative meteorological records.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Benito Juárez International Airport Station in degrees Celsius on 20 Sep '26.
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.
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.
Volume
$924End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 8:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=mmmxResolver
0x69c47De9D...**Trader sentiment for the lowest temperature in Mexico City on September 20 centers on the 13°C outcome at 90% implied probability, reflecting official station observations of overnight lows near that level.** Mexico City's high elevation around 2,240–2,300 meters promotes rapid radiative cooling after sunset, but September's typical cloud cover, light winds, and humid air from the rainy season moderate extremes and keep minimums close to seasonal averages of 10–12°C. Recent model runs and real-time data from sources like the Mexico City station showed steady overnight temperatures in the 13–14°C range with no significant cold advection or clear-sky enhancement, aligning trader consensus with observed conditions rather than rarer sub-10°C scenarios. Upcoming resolution will hinge on final verified minimums from authoritative meteorological records.
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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