Ensemble forecasts from GFS and ECMWF models indicate a Shanghai high temperature near 27-28°C on May 15 under building high pressure and light southerly winds, yet trader consensus clusters tightly at 24-26°C implied probabilities, driven by recent model overestimation—May 13's actual 23°C at Pudong Airport fell short of prior projections amid unexpected cloud cover and coastal sea breeze effects. This scientific uncertainty, amplified by variable low-level moisture and potential afternoon convection, differentiates the leading outcomes, with historical mid-May averages around 24°C providing baseline context. China Meteorological Administration updates later today and real-time observations will refine trajectories before resolution based on official airport records.
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 15?
Highest temperature in Shanghai on May 15?
25°C 31%
24°C 27%
26°C 20%
23°C 13%
20°C or below
1%
21°C
1%
22°C
2%
23°C
13%
24°C
27%
25°C
31%
26°C
20%
27°C
10%
28°C
3%
29°C
1%
30°C or higher
<1%
25°C 31%
24°C 27%
26°C 20%
23°C 13%
20°C or below
1%
21°C
1%
22°C
2%
23°C
13%
24°C
27%
25°C
31%
26°C
20%
27°C
10%
28°C
3%
29°C
1%
30°C or higher
<1%
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 13, 2026, 12:06 AM ET
Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...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...Ensemble forecasts from GFS and ECMWF models indicate a Shanghai high temperature near 27-28°C on May 15 under building high pressure and light southerly winds, yet trader consensus clusters tightly at 24-26°C implied probabilities, driven by recent model overestimation—May 13's actual 23°C at Pudong Airport fell short of prior projections amid unexpected cloud cover and coastal sea breeze effects. This scientific uncertainty, amplified by variable low-level moisture and potential afternoon convection, differentiates the leading outcomes, with historical mid-May averages around 24°C providing baseline context. China Meteorological Administration updates later today and real-time observations will refine trajectories before resolution based on official airport records.
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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