Trader consensus on Polymarket assigns a near-certain 100% implied probability to a 21°C high temperature in Shanghai today, reflecting tight clustering in the latest GFS and ECMWF ensemble forecasts around 20-22°C, corroborated by China Meteorological Administration projections under persistent cloud cover and northerly winds capping daytime heating. Current observations from the Xujiahui observatory—the market's resolution source—show midday peaks near 20°C amid overcast skies, aligning with April climatological norms where average highs hover around 19°C. Realistic challenges include unexpected clearing allowing brief solar insolation to nudge readings to 22°C before sunset, though model agreement and late-day cooling trends make this improbable; final official readings expected post-midnight.
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 April 19?
Highest temperature in Shanghai on April 19?
21°C 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$278,880 Vol.
$278,880 Vol.
Apr 19, 2026
17°C or below
No
18°C
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C or higher
No
21°C 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$278,880 Vol.
$278,880 Vol.
Apr 19, 2026
17°C or below
$9,748 Vol.
No
18°C
$8,138 Vol.
No
19°C
$12,979 Vol.
No
20°C
$23,788 Vol.
No
21°C
$54,538 Vol.
Yes
22°C
$43,358 Vol.
No
23°C
$46,720 Vol.
No
24°C
$26,818 Vol.
No
25°C
$32,836 Vol.
No
26°C
$9,909 Vol.
No
27°C or higher
$10,049 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 19 Apr '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.Trader consensus on Polymarket assigns a near-certain 100% implied probability to a 21°C high temperature in Shanghai today, reflecting tight clustering in the latest GFS and ECMWF ensemble forecasts around 20-22°C, corroborated by China Meteorological Administration projections under persistent cloud cover and northerly winds capping daytime heating. Current observations from the Xujiahui observatory—the market's resolution source—show midday peaks near 20°C amid overcast skies, aligning with April climatological norms where average highs hover around 19°C. Realistic challenges include unexpected clearing allowing brief solar insolation to nudge readings to 22°C before sunset, though model agreement and late-day cooling trends make this improbable; final official readings expected post-midnight.
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 19 Apr '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: Apr 17, 2026, 12:06 AM ET
Volume
$278,880End Date
Apr 19, 2026Market Opened
Apr 17, 2026, 12:06 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 19 Apr '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.Trader consensus on Polymarket assigns a near-certain 100% implied probability to a 21°C high temperature in Shanghai today, reflecting tight clustering in the latest GFS and ECMWF ensemble forecasts around 20-22°C, corroborated by China Meteorological Administration projections under persistent cloud cover and northerly winds capping daytime heating. Current observations from the Xujiahui observatory—the market's resolution source—show midday peaks near 20°C amid overcast skies, aligning with April climatological norms where average highs hover around 19°C. Realistic challenges include unexpected clearing allowing brief solar insolation to nudge readings to 22°C before sunset, though model agreement and late-day cooling trends make this improbable; final official readings expected post-midnight.
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 19 Apr '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
$278,880End Date
Apr 19, 2026Market Opened
Apr 17, 2026, 12:06 AM ETResolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket assigns a near-certain 100% implied probability to a 21°C high temperature in Shanghai today, reflecting tight clustering in the latest GFS and ECMWF ensemble forecasts around 20-22°C, corroborated by China Meteorological Administration projections under persistent cloud cover and northerly winds capping daytime heating. Current observations from the Xujiahui observatory—the market's resolution source—show midday peaks near 20°C amid overcast skies, aligning with April climatological norms where average highs hover around 19°C. Realistic challenges include unexpected clearing allowing brief solar insolation to nudge readings to 22°C before sunset, though model agreement and late-day cooling trends make this improbable; final official readings expected post-midnight.
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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