Forecast models from sources including the National Meteorological Center and international ensembles show Shanghai under easterly flow with mostly cloudy skies and moderate humidity on September 23, supporting a daily maximum near 29°C. Recent observations confirm highs of 29–30°C over the prior week amid a stable late-summer pattern without significant frontal passages or tropical systems. This consensus drives the market’s strong weighting toward 29°C (61.5% implied probability) and 28°C (31%), with only modest odds on 30°C reflecting minor upside risks from localized heating or model spread. Updated runs through the evening of September 22 will refine exact peak timing and any cloud-cover variations that could shift the outcome within the narrow 28–30°C band.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Shanghai on September 23?
Highest temperature in Shanghai on September 23?
29°C 62%
28°C 32%
30°C 6%
27°C 3%
NEW
$38,263 Vol.
NEW
$38,263 Vol.
Sep 23, 2026
23°C or below
<1%
24°C
<1%
25°C
<1%
26°C
<1%
27°C
3%
28°C
32%
29°C
62%
30°C
6%
31°C
1%
32°C
<1%
33°C or higher
<1%
29°C 62%
28°C 32%
30°C 6%
27°C 3%
NEW
$38,263 Vol.
NEW
$38,263 Vol.
Sep 23, 2026
23°C or below
$356 Vol.
<1%
24°C
$115 Vol.
<1%
25°C
$971 Vol.
<1%
26°C
$3,788 Vol.
<1%
27°C
$7,788 Vol.
3%
28°C
$12,340 Vol.
32%
29°C
$7,307 Vol.
62%
30°C
$3,858 Vol.
6%
31°C
$1,284 Vol.
1%
32°C
$279 Vol.
<1%
33°C or higher
$176 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Shanghai Pudong 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=zspd
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 from sources including the National Meteorological Center and international ensembles show Shanghai under easterly flow with mostly cloudy skies and moderate humidity on September 23, supporting a daily maximum near 29°C. Recent observations confirm highs of 29–30°C over the prior week amid a stable late-summer pattern without significant frontal passages or tropical systems. This consensus drives the market’s strong weighting toward 29°C (61.5% implied probability) and 28°C (31%), with only modest odds on 30°C reflecting minor upside risks from localized heating or model spread. Updated runs through the evening of September 22 will refine exact peak timing and any cloud-cover variations that could shift the outcome within the narrow 28–30°C band.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Shanghai Pudong 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=zspd
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=zspd
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, 12:56 AM ET
Volume
$38,263End Date
Sep 23, 2026Market Opened
Sep 21, 2026, 12:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zspdResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Shanghai Pudong 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=zspd
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 from sources including the National Meteorological Center and international ensembles show Shanghai under easterly flow with mostly cloudy skies and moderate humidity on September 23, supporting a daily maximum near 29°C. Recent observations confirm highs of 29–30°C over the prior week amid a stable late-summer pattern without significant frontal passages or tropical systems. This consensus drives the market’s strong weighting toward 29°C (61.5% implied probability) and 28°C (31%), with only modest odds on 30°C reflecting minor upside risks from localized heating or model spread. Updated runs through the evening of September 22 will refine exact peak timing and any cloud-cover variations that could shift the outcome within the narrow 28–30°C band.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Shanghai Pudong 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=zspd
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=zspd
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
$38,263End Date
Sep 23, 2026Market Opened
Sep 21, 2026, 12:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zspdResolver
0x69c47De9D...Forecast models from sources including the National Meteorological Center and international ensembles show Shanghai under easterly flow with mostly cloudy skies and moderate humidity on September 23, supporting a daily maximum near 29°C. Recent observations confirm highs of 29–30°C over the prior week amid a stable late-summer pattern without significant frontal passages or tropical systems. This consensus drives the market’s strong weighting toward 29°C (61.5% implied probability) and 28°C (31%), with only modest odds on 30°C reflecting minor upside risks from localized heating or model spread. Updated runs through the evening of September 22 will refine exact peak timing and any cloud-cover variations that could shift the outcome within the narrow 28–30°C band.
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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