Trader consensus has locked in a 100% implied probability for a 19°C high in Shanghai today, driven by the latest China Meteorological Administration forecasts and ensemble model runs projecting peak temperatures just below 20°C amid a persistent cool spell with northerly flows suppressing heat advection. Clear skies noted in early-morning updates from the Hong Kong Observatory (10–20°C range) support limited daytime heating, aligning with late-April climatology averaging 20°C but tempered by recent cooler-than-normal days, including yesterday's sub-15°C maximum. Resolution hinges on official Xujiahui station observations by midnight; a rare southerly wind shift or prolonged sunshine could realistically challenge this to 20–21°C, though current guidance shows negligible odds.
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 30?
19°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$168,023 Vol.
$168,023 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
Yes
20°C
No
21°C
No
22°C
No
23°C or higher
No
19°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$168,023 Vol.
$168,023 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
Yes
20°C
No
21°C
No
22°C
No
23°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 28, 2026, 3:59 PM 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 has locked in a 100% implied probability for a 19°C high in Shanghai today, driven by the latest China Meteorological Administration forecasts and ensemble model runs projecting peak temperatures just below 20°C amid a persistent cool spell with northerly flows suppressing heat advection. Clear skies noted in early-morning updates from the Hong Kong Observatory (10–20°C range) support limited daytime heating, aligning with late-April climatology averaging 20°C but tempered by recent cooler-than-normal days, including yesterday's sub-15°C maximum. Resolution hinges on official Xujiahui station observations by midnight; a rare southerly wind shift or prolonged sunshine could realistically challenge this to 20–21°C, though current guidance shows negligible odds.
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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