Recent official and model forecasts for Shanghai on September 9 point to a high near 28–29°C under northerly winds and partly cloudy skies, creating the tight market split between those two outcomes. Persistent northerly flow advects slightly cooler maritime air while moderate cloud cover limits daytime heating, keeping maxima below the seasonal peak often seen earlier in the month. Ensemble guidance shows limited spread, with most runs converging on this narrow range absent any strong frontal passage or clear-sky surge. Updated model runs and official briefings over the next 48 hours will refine the final maximum before 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 Shanghai on September 9?
Highest temperature in Shanghai on September 9?
29°C 45%
28°C 41%
30°C 8%
27°C 7%
NEW
NEW
Sep 9, 2026
24°C or below
<1%
25°C
<1%
26°C
4%
27°C
7%
28°C
41%
29°C
45%
30°C
8%
31°C
2%
32°C
1%
33°C
<1%
34°C or higher
<1%
29°C 45%
28°C 41%
30°C 8%
27°C 7%
NEW
NEW
Sep 9, 2026
24°C or below
$250 Vol.
<1%
25°C
$350 Vol.
<1%
26°C
$198 Vol.
4%
27°C
$261 Vol.
7%
28°C
$223 Vol.
41%
29°C
$810 Vol.
45%
30°C
$81 Vol.
8%
31°C
$80 Vol.
2%
32°C
$92 Vol.
1%
33°C
$376 Vol.
<1%
34°C or higher
$331 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 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=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.Recent official and model forecasts for Shanghai on September 9 point to a high near 28–29°C under northerly winds and partly cloudy skies, creating the tight market split between those two outcomes. Persistent northerly flow advects slightly cooler maritime air while moderate cloud cover limits daytime heating, keeping maxima below the seasonal peak often seen earlier in the month. Ensemble guidance shows limited spread, with most runs converging on this narrow range absent any strong frontal passage or clear-sky surge. Updated model runs and official briefings over the next 48 hours will refine the final maximum before resolution.
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 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=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 7, 2026, 12:56 AM ET
Volume
$3,052End Date
Sep 9, 2026Market Opened
Sep 7, 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 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=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.Recent official and model forecasts for Shanghai on September 9 point to a high near 28–29°C under northerly winds and partly cloudy skies, creating the tight market split between those two outcomes. Persistent northerly flow advects slightly cooler maritime air while moderate cloud cover limits daytime heating, keeping maxima below the seasonal peak often seen earlier in the month. Ensemble guidance shows limited spread, with most runs converging on this narrow range absent any strong frontal passage or clear-sky surge. Updated model runs and official briefings over the next 48 hours will refine the final maximum before resolution.
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 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=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
$3,052End Date
Sep 9, 2026Market Opened
Sep 7, 2026, 12:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zspdResolver
0x69c47De9D...Recent official and model forecasts for Shanghai on September 9 point to a high near 28–29°C under northerly winds and partly cloudy skies, creating the tight market split between those two outcomes. Persistent northerly flow advects slightly cooler maritime air while moderate cloud cover limits daytime heating, keeping maxima below the seasonal peak often seen earlier in the month. Ensemble guidance shows limited spread, with most runs converging on this narrow range absent any strong frontal passage or clear-sky surge. Updated model runs and official briefings over the next 48 hours will refine the final maximum before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions