Recent forecast updates from global and regional models show increased cloud cover, thundershowers, and a passing weather system over eastern China that is limiting daytime heating in Shanghai on June 21. These conditions align with the East Asian monsoon and plum rain patterns typical for mid-June, which historically cap highs near or below the 27–28°C seasonal average when precipitation is widespread. Ensemble guidance currently clusters around 26–28°C maxima, with limited upside potential unless skies clear earlier than expected, while downside risk stems from heavier rain or stronger onshore flow. Trader sentiment reflects this narrow range of outcomes, with uncertainty tied to the timing and intensity of the next model runs before the June 21 observation window closes.
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 June 21?
Highest temperature in Shanghai on June 21?
27°C 100.0%
23°C or below <1%
24°C <1%
25°C <1%
$164,010 Vol.
$164,010 Vol.
Jun 21, 2026
23°C or below
No
24°C
No
25°C
No
26°C
No
27°C
Yes
28°C
No
29°C
No
30°C
No
31°C
No
32°C
No
33°C or higher
No
27°C 100.0%
23°C or below <1%
24°C <1%
25°C <1%
$164,010 Vol.
$164,010 Vol.
Jun 21, 2026
23°C or below
$3,854 Vol.
No
24°C
$8,913 Vol.
No
25°C
$20,587 Vol.
No
26°C
$18,292 Vol.
No
27°C
$39,131 Vol.
Yes
28°C
$24,280 Vol.
No
29°C
$22,548 Vol.
No
30°C
$15,222 Vol.
No
31°C
$4,631 Vol.
No
32°C
$2,757 Vol.
No
33°C or higher
$3,794 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 Jun '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.Recent forecast updates from global and regional models show increased cloud cover, thundershowers, and a passing weather system over eastern China that is limiting daytime heating in Shanghai on June 21. These conditions align with the East Asian monsoon and plum rain patterns typical for mid-June, which historically cap highs near or below the 27–28°C seasonal average when precipitation is widespread. Ensemble guidance currently clusters around 26–28°C maxima, with limited upside potential unless skies clear earlier than expected, while downside risk stems from heavier rain or stronger onshore flow. Trader sentiment reflects this narrow range of outcomes, with uncertainty tied to the timing and intensity of the next model runs before the June 21 observation window closes.
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 Jun '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.
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: Jun 19, 2026, 12:04 AM ET
Volume
$164,010End Date
Jun 21, 2026Market Opened
Jun 19, 2026, 12:04 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 Jun '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.Recent forecast updates from global and regional models show increased cloud cover, thundershowers, and a passing weather system over eastern China that is limiting daytime heating in Shanghai on June 21. These conditions align with the East Asian monsoon and plum rain patterns typical for mid-June, which historically cap highs near or below the 27–28°C seasonal average when precipitation is widespread. Ensemble guidance currently clusters around 26–28°C maxima, with limited upside potential unless skies clear earlier than expected, while downside risk stems from heavier rain or stronger onshore flow. Trader sentiment reflects this narrow range of outcomes, with uncertainty tied to the timing and intensity of the next model runs before the June 21 observation window closes.
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 Jun '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.
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
$164,010End Date
Jun 21, 2026Market Opened
Jun 19, 2026, 12:04 AM ETResolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Recent forecast updates from global and regional models show increased cloud cover, thundershowers, and a passing weather system over eastern China that is limiting daytime heating in Shanghai on June 21. These conditions align with the East Asian monsoon and plum rain patterns typical for mid-June, which historically cap highs near or below the 27–28°C seasonal average when precipitation is widespread. Ensemble guidance currently clusters around 26–28°C maxima, with limited upside potential unless skies clear earlier than expected, while downside risk stems from heavier rain or stronger onshore flow. Trader sentiment reflects this narrow range of outcomes, with uncertainty tied to the timing and intensity of the next model runs before the June 21 observation window closes.
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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