Official observations confirm Shanghai reached a daily maximum of 31°C on August 23, 2026, producing the market's near-certain 100% implied probability on that exact outcome. Persistent southeast monsoon flow, scattered light rain, and high humidity limited diurnal heating despite partly cloudy skies, keeping afternoon readings from climbing higher. National meteorological stations and airport METAR reports aligned on this peak, consistent with recent days' pattern of 31–32°C highs under similar synoptic conditions. Only an improbable late-day measurement revision or station-specific anomaly would alter the recorded maximum before final verification.
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 August 23?
Highest temperature in Shanghai on August 23?
31°C 100.0%
26°C or below <1%
27°C <1%
28°C <1%
$59,579 Vol.
$59,579 Vol.
Aug 23, 2026
26°C or below
No
27°C
No
28°C
No
29°C
No
30°C
No
31°C
Yes
32°C
No
33°C
No
34°C
No
35°C
No
36°C or higher
No
31°C 100.0%
26°C or below <1%
27°C <1%
28°C <1%
$59,579 Vol.
$59,579 Vol.
Aug 23, 2026
26°C or below
$274 Vol.
No
27°C
$2,613 Vol.
No
28°C
$1,765 Vol.
No
29°C
$4,418 Vol.
No
30°C
$14,235 Vol.
No
31°C
$14,109 Vol.
Yes
32°C
$11,025 Vol.
No
33°C
$6,912 Vol.
No
34°C
$2,447 Vol.
No
35°C
$1,479 Vol.
No
36°C or higher
$302 Vol.
No
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 23 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Shanghai Pudong International Airport Station, available here: https://www.wunderground.com/history/daily/cn/shanghai/ZSPD.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.Official observations confirm Shanghai reached a daily maximum of 31°C on August 23, 2026, producing the market's near-certain 100% implied probability on that exact outcome. Persistent southeast monsoon flow, scattered light rain, and high humidity limited diurnal heating despite partly cloudy skies, keeping afternoon readings from climbing higher. National meteorological stations and airport METAR reports aligned on this peak, consistent with recent days' pattern of 31–32°C highs under similar synoptic conditions. Only an improbable late-day measurement revision or station-specific anomaly would alter the recorded maximum before final verification.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 23 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Shanghai Pudong International Airport Station, available here: https://www.wunderground.com/history/daily/cn/shanghai/ZSPD.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 23 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Shanghai Pudong International Airport Station, available here: https://www.wunderground.com/history/daily/cn/shanghai/ZSPD.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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: Aug 21, 2026, 12:56 AM ET
Volume
$59,579End Date
Aug 23, 2026Market Opened
Aug 21, 2026, 12:56 AM ETResolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 23 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Shanghai Pudong International Airport Station, available here: https://www.wunderground.com/history/daily/cn/shanghai/ZSPD.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.Official observations confirm Shanghai reached a daily maximum of 31°C on August 23, 2026, producing the market's near-certain 100% implied probability on that exact outcome. Persistent southeast monsoon flow, scattered light rain, and high humidity limited diurnal heating despite partly cloudy skies, keeping afternoon readings from climbing higher. National meteorological stations and airport METAR reports aligned on this peak, consistent with recent days' pattern of 31–32°C highs under similar synoptic conditions. Only an improbable late-day measurement revision or station-specific anomaly would alter the recorded maximum before final verification.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 23 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Shanghai Pudong International Airport Station, available here: https://www.wunderground.com/history/daily/cn/shanghai/ZSPD.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 23 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Shanghai Pudong International Airport Station, available here: https://www.wunderground.com/history/daily/cn/shanghai/ZSPD.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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
$59,579End Date
Aug 23, 2026Market Opened
Aug 21, 2026, 12:56 AM ETResolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations confirm Shanghai reached a daily maximum of 31°C on August 23, 2026, producing the market's near-certain 100% implied probability on that exact outcome. Persistent southeast monsoon flow, scattered light rain, and high humidity limited diurnal heating despite partly cloudy skies, keeping afternoon readings from climbing higher. National meteorological stations and airport METAR reports aligned on this peak, consistent with recent days' pattern of 31–32°C highs under similar synoptic conditions. Only an improbable late-day measurement revision or station-specific anomaly would alter the recorded maximum before final verification.
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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