Trader consensus on Polymarket assigns 100% implied probability to a 13°C high in Shanghai today, backed by real-time observations from the China Meteorological Administration's Xujiahui station showing a midday peak of 13°C under persistent light rain totaling over 34 mm in 24 hours, dense cloud cover, and northeast winds from a cold air intrusion. This stark contrast to April 27's 30.1°C and the month's climatological average of 19–22°C stems from rapid synoptic shifts suppressing diurnal heating. ECMWF and GFS nowcasts reinforce ongoing overcast skies and post-sunset cooling around 18:30 local time. Final resolution hinges on Shanghai Pudong Airport data via Wunderground, but a challenging upset would require improbable late-day clearing to push temperatures higher amid stable low-level stability.
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 29?
13°C 100.0%
12°C or below <1%
14°C <1%
15°C <1%
$228,344 Vol.
$228,344 Vol.
12°C or below
No
13°C
Yes
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C or higher
No
13°C 100.0%
12°C or below <1%
14°C <1%
15°C <1%
$228,344 Vol.
$228,344 Vol.
12°C or below
No
13°C
Yes
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C or higher
No
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 27, 2026, 12:49 AM ET
Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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.
Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket assigns 100% implied probability to a 13°C high in Shanghai today, backed by real-time observations from the China Meteorological Administration's Xujiahui station showing a midday peak of 13°C under persistent light rain totaling over 34 mm in 24 hours, dense cloud cover, and northeast winds from a cold air intrusion. This stark contrast to April 27's 30.1°C and the month's climatological average of 19–22°C stems from rapid synoptic shifts suppressing diurnal heating. ECMWF and GFS nowcasts reinforce ongoing overcast skies and post-sunset cooling around 18:30 local time. Final resolution hinges on Shanghai Pudong Airport data via Wunderground, but a challenging upset would require improbable late-day clearing to push temperatures higher amid stable low-level stability.
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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