Current numerical weather prediction models, including GFS and ECMWF runs, show Shanghai under mostly cloudy skies with light easterly winds on September 23, supporting overnight lows clustered near 23–24°C. Persistent cloud cover limits nocturnal radiative cooling while high humidity and stable subtropical air masses moderate temperature drops, consistent with late-September climatology for the region. Minor model disagreements center on exact cloud thickness and timing of any brief clear spells that could allow slightly deeper cooling. With resolution imminent, trader odds reflect this narrow forecast envelope and limited scope for significant shifts before official minimum observations are recorded.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Shanghai on September 23?
Lowest temperature in Shanghai on September 23?
24°C 36%
23°C 31%
28°C or higher 24%
18°C or below 23%
NEW
NEW
Sep 23, 2026
18°C or below
23%
19°C
15%
20°C
20%
21°C
13%
22°C
17%
23°C
31%
24°C
36%
25°C
16%
26°C
21%
27°C
20%
28°C or higher
24%
24°C 36%
23°C 31%
28°C or higher 24%
18°C or below 23%
NEW
NEW
Sep 23, 2026
18°C or below
$0 Vol.
23%
19°C
$0 Vol.
15%
20°C
$0 Vol.
20%
21°C
$0 Vol.
13%
22°C
$0 Vol.
17%
23°C
$424 Vol.
31%
24°C
$395 Vol.
36%
25°C
$0 Vol.
16%
26°C
$0 Vol.
21%
27°C
$0 Vol.
20%
28°C or higher
$0 Vol.
24%
This market will resolve to the temperature range that contains the lowest 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 lowest 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.Current numerical weather prediction models, including GFS and ECMWF runs, show Shanghai under mostly cloudy skies with light easterly winds on September 23, supporting overnight lows clustered near 23–24°C. Persistent cloud cover limits nocturnal radiative cooling while high humidity and stable subtropical air masses moderate temperature drops, consistent with late-September climatology for the region. Minor model disagreements center on exact cloud thickness and timing of any brief clear spells that could allow slightly deeper cooling. With resolution imminent, trader odds reflect this narrow forecast envelope and limited scope for significant shifts before official minimum observations are recorded.
This market will resolve to the temperature range that contains the lowest 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 lowest 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 lowest 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, 12:29 AM ET
Volume
$819End Date
Sep 23, 2026Market Opened
Sep 21, 2026, 12:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zspdResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest 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 lowest 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.Current numerical weather prediction models, including GFS and ECMWF runs, show Shanghai under mostly cloudy skies with light easterly winds on September 23, supporting overnight lows clustered near 23–24°C. Persistent cloud cover limits nocturnal radiative cooling while high humidity and stable subtropical air masses moderate temperature drops, consistent with late-September climatology for the region. Minor model disagreements center on exact cloud thickness and timing of any brief clear spells that could allow slightly deeper cooling. With resolution imminent, trader odds reflect this narrow forecast envelope and limited scope for significant shifts before official minimum observations are recorded.
This market will resolve to the temperature range that contains the lowest 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 lowest 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 lowest 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
$819End Date
Sep 23, 2026Market Opened
Sep 21, 2026, 12:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zspdResolver
0x69c47De9D...Current numerical weather prediction models, including GFS and ECMWF runs, show Shanghai under mostly cloudy skies with light easterly winds on September 23, supporting overnight lows clustered near 23–24°C. Persistent cloud cover limits nocturnal radiative cooling while high humidity and stable subtropical air masses moderate temperature drops, consistent with late-September climatology for the region. Minor model disagreements center on exact cloud thickness and timing of any brief clear spells that could allow slightly deeper cooling. With resolution imminent, trader odds reflect this narrow forecast envelope and limited scope for significant shifts before official minimum observations are recorded.
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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