Trader sentiment for Shanghai's highest temperature on March 28 clusters tightly around 17-20°C, reflecting strong model consensus from ECMWF and GFS ensembles projecting mild southerly winds and partial cloud cover to cap peaks amid spring warming. Recent forecast updates show a slight upward shift toward 18-19°C after yesterday's ECMWF run incorporated urban heat island effects and reduced northerly cold air advection, boosting those odds over cooler 16-17°C scenarios. Differentiating factors include solar insolation variability—thicker afternoon clouds could suppress 20°C+ outcomes (now at 18.5% combined)—while historical late-March averages of 13-15°C underscore the warm anomaly from La Niña fadeout, with official CMA observations key to resolution.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 28?
Highest temperature in Shanghai on March 28?
18°C 27%
19°C 26%
17°C 22%
20°C 20%
14°C or below
3%
15°C
15%
16°C
18%
17°C
22%
18°C
27%
19°C
26%
20°C
20%
21°C
18%
22°C
4%
23°C
3%
24°C or higher
2%
18°C 27%
19°C 26%
17°C 22%
20°C 20%
14°C or below
3%
15°C
15%
16°C
18%
17°C
22%
18°C
27%
19°C
26%
20°C
20%
21°C
18%
22°C
4%
23°C
3%
24°C or higher
2%
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: Mar 24, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Trader sentiment for Shanghai's highest temperature on March 28 clusters tightly around 17-20°C, reflecting strong model consensus from ECMWF and GFS ensembles projecting mild southerly winds and partial cloud cover to cap peaks amid spring warming. Recent forecast updates show a slight upward shift toward 18-19°C after yesterday's ECMWF run incorporated urban heat island effects and reduced northerly cold air advection, boosting those odds over cooler 16-17°C scenarios. Differentiating factors include solar insolation variability—thicker afternoon clouds could suppress 20°C+ outcomes (now at 18.5% combined)—while historical late-March averages of 13-15°C underscore the warm anomaly from La Niña fadeout, with official CMA observations key to resolution.
Experimental AI-generated summary referencing Polymarket data · Updated
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