Trader consensus on Polymarket closely splits between 18–20°C for Shanghai's highest temperature today, mirroring the latest ensemble forecasts from ECMWF, GFS, and China Meteorological Administration models projecting daytime maxima in the 18–21°C range—well above the late-March climatological average of 16–17°C. This positioning stems from a mild southerly flow advecting warmer continental air amid light winds, following yesterday's high near 20°C, though slight divergences persist on afternoon cloud cover timing and insolation, potentially capping peaks at 18°C under overcast skies or pushing toward 21°C with clearer conditions. Official observations from Shanghai's Xujiahui station, updated hourly, will resolve uncertainties as the afternoon maximum approaches.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 30?
Highest temperature in Shanghai on March 30?
19°C 29%
17°C 28%
18°C 26%
20°C 21%
$29,914 Vol.
$29,914 Vol.
15°C
<1%
16°C
1%
17°C
22%
18°C
24%
19°C
22%
20°C
21%
21°C
15%
22°C
7%
23°C or higher
3%
19°C 29%
17°C 28%
18°C 26%
20°C 21%
$29,914 Vol.
$29,914 Vol.
15°C
<1%
16°C
1%
17°C
22%
18°C
24%
19°C
22%
20°C
21%
21°C
15%
22°C
7%
23°C or higher
3%
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 29, 2026, 2:16 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 on Polymarket closely splits between 18–20°C for Shanghai's highest temperature today, mirroring the latest ensemble forecasts from ECMWF, GFS, and China Meteorological Administration models projecting daytime maxima in the 18–21°C range—well above the late-March climatological average of 16–17°C. This positioning stems from a mild southerly flow advecting warmer continental air amid light winds, following yesterday's high near 20°C, though slight divergences persist on afternoon cloud cover timing and insolation, potentially capping peaks at 18°C under overcast skies or pushing toward 21°C with clearer conditions. Official observations from Shanghai's Xujiahui station, updated hourly, will resolve uncertainties as the afternoon maximum approaches.
Experimental AI-generated summary referencing Polymarket data · Updated
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