Current meteorological forecasts for Shanghai indicate a stable high of 25°C on May 21, driven by moderate subtropical airflow and limited daytime heating under partly cloudy skies, consistent with seasonal averages near 25–27°C. Numerical weather models from regional agencies show tight agreement on this peak, with no significant warm-air advection or clear-sky amplification expected before evening cooling sets in. The market’s near-100% implied probability for 25°C reflects this consensus backed by real-capital trader assessment of official observation criteria. Minor revisions in late-day model runs or localized urban heat effects could theoretically shift the recorded maximum by 1°C, though historical verification patterns for similar May conditions make such deviations unlikely 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 May 21?
Highest temperature in Shanghai on May 21?
25°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$101,447 Vol.
$101,447 Vol.
May 21, 2026
20°C or below
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
Yes
26°C
No
27°C
No
28°C
No
29°C
No
30°C or higher
No
25°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$101,447 Vol.
$101,447 Vol.
May 21, 2026
20°C or below
$1,858 Vol.
No
21°C
$537 Vol.
No
22°C
$659 Vol.
No
23°C
$3,338 Vol.
No
24°C
$20,048 Vol.
No
25°C
$31,246 Vol.
Yes
26°C
$16,105 Vol.
No
27°C
$10,241 Vol.
No
28°C
$6,388 Vol.
No
29°C
$5,273 Vol.
No
30°C or higher
$5,755 Vol.
No
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 21 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Shanghai Pudong International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Current meteorological forecasts for Shanghai indicate a stable high of 25°C on May 21, driven by moderate subtropical airflow and limited daytime heating under partly cloudy skies, consistent with seasonal averages near 25–27°C. Numerical weather models from regional agencies show tight agreement on this peak, with no significant warm-air advection or clear-sky amplification expected before evening cooling sets in. The market’s near-100% implied probability for 25°C reflects this consensus backed by real-capital trader assessment of official observation criteria. Minor revisions in late-day model runs or localized urban heat effects could theoretically shift the recorded maximum by 1°C, though historical verification patterns for similar May conditions make such deviations unlikely before resolution.
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 21 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Shanghai Pudong International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Shanghai Pudong International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: May 19, 2026, 12:35 AM ET
Volume
$101,447End Date
May 21, 2026Market Opened
May 19, 2026, 12:35 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 to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 21 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Shanghai Pudong International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Current meteorological forecasts for Shanghai indicate a stable high of 25°C on May 21, driven by moderate subtropical airflow and limited daytime heating under partly cloudy skies, consistent with seasonal averages near 25–27°C. Numerical weather models from regional agencies show tight agreement on this peak, with no significant warm-air advection or clear-sky amplification expected before evening cooling sets in. The market’s near-100% implied probability for 25°C reflects this consensus backed by real-capital trader assessment of official observation criteria. Minor revisions in late-day model runs or localized urban heat effects could theoretically shift the recorded maximum by 1°C, though historical verification patterns for similar May conditions make such deviations unlikely before resolution.
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 21 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Shanghai Pudong International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Shanghai Pudong International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$101,447End Date
May 21, 2026Market Opened
May 19, 2026, 12:35 AM ETResolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Current meteorological forecasts for Shanghai indicate a stable high of 25°C on May 21, driven by moderate subtropical airflow and limited daytime heating under partly cloudy skies, consistent with seasonal averages near 25–27°C. Numerical weather models from regional agencies show tight agreement on this peak, with no significant warm-air advection or clear-sky amplification expected before evening cooling sets in. The market’s near-100% implied probability for 25°C reflects this consensus backed by real-capital trader assessment of official observation criteria. Minor revisions in late-day model runs or localized urban heat effects could theoretically shift the recorded maximum by 1°C, though historical verification patterns for similar May conditions make such deviations unlikely before resolution.
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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