Trader consensus on Polymarket heavily favors a Shanghai high of 16°C (31.5% implied probability) or 17°C (28.0%), reflecting the latest ensemble forecasts from ECMWF and GFS models, which project peaks in the mid-teens Celsius amid mild southerly flows and partial cloud cover on March 25. These closely matched odds stem from a narrow model spread of 1-2°C, driven by current upper-air patterns showing weak ridging over eastern China, limiting convective heating. Historical March 25 highs average 15.5°C, with recent days trending 1°C above normal, but diurnally peaking later under lighter winds could nudge toward 17°C; below 15°C odds remain low absent a surprise cold surge. Traders eye tomorrow's 12Z model runs for resolution catalysts.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 25?
Highest temperature in Shanghai on March 25?
16°C 33%
17°C 28%
15°C 18%
18°C 13%
11°C or below
1%
12°C
6%
13°C
6%
14°C
6%
15°C
18%
16°C
33%
17°C
28%
18°C
13%
19°C
6%
20°C
6%
21°C or higher
2%
16°C 33%
17°C 28%
15°C 18%
18°C 13%
11°C or below
1%
12°C
6%
13°C
6%
14°C
6%
15°C
18%
16°C
33%
17°C
28%
18°C
13%
19°C
6%
20°C
6%
21°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 21, 2026, 6:03 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 consensus on Polymarket heavily favors a Shanghai high of 16°C (31.5% implied probability) or 17°C (28.0%), reflecting the latest ensemble forecasts from ECMWF and GFS models, which project peaks in the mid-teens Celsius amid mild southerly flows and partial cloud cover on March 25. These closely matched odds stem from a narrow model spread of 1-2°C, driven by current upper-air patterns showing weak ridging over eastern China, limiting convective heating. Historical March 25 highs average 15.5°C, with recent days trending 1°C above normal, but diurnally peaking later under lighter winds could nudge toward 17°C; below 15°C odds remain low absent a surprise cold surge. Traders eye tomorrow's 12Z model runs for resolution catalysts.
Experimental AI-generated summary referencing Polymarket data · Updated
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