Trader consensus on Polymarket tilts toward a high of 16°C (33.5%) or 17°C (23.5%) in Shanghai on March 27, driven by the latest ECMWF and GFS ensemble forecasts projecting mild conditions under weak high-pressure influence and southerly winds, with mean predictions clustering around 15-17°C amid spring variability. High uncertainty stems from volatile East Asian jet stream patterns, where a potential cold frontal passage could drop outcomes to 13-15°C (totaling ~28%), while persistent clear skies and warm advection might push toward 18-20°C (18.6%). Official observations from Shanghai's Xujiahui station show recent March averages near 14°C, but early model divergences—reflected in 40%+ odds for sub-18°C—underscore risks from cloud cover or northerly gusts, with final resolution hinging on 00Z updates from the China Meteorological Administration.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 27?
Highest temperature in Shanghai on March 27?
16°C 34%
17°C 24%
15°C 15%
18°C 13%
$11,207 Vol.
$11,207 Vol.
11°C or below
1%
12°C
1%
13°C
5%
14°C
11%
15°C
15%
16°C
34%
17°C
24%
18°C
13%
19°C
3%
20°C
3%
21°C or higher
2%
16°C 34%
17°C 24%
15°C 15%
18°C 13%
$11,207 Vol.
$11,207 Vol.
11°C or below
1%
12°C
1%
13°C
5%
14°C
11%
15°C
15%
16°C
34%
17°C
24%
18°C
13%
19°C
3%
20°C
3%
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 23, 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 tilts toward a high of 16°C (33.5%) or 17°C (23.5%) in Shanghai on March 27, driven by the latest ECMWF and GFS ensemble forecasts projecting mild conditions under weak high-pressure influence and southerly winds, with mean predictions clustering around 15-17°C amid spring variability. High uncertainty stems from volatile East Asian jet stream patterns, where a potential cold frontal passage could drop outcomes to 13-15°C (totaling ~28%), while persistent clear skies and warm advection might push toward 18-20°C (18.6%). Official observations from Shanghai's Xujiahui station show recent March averages near 14°C, but early model divergences—reflected in 40%+ odds for sub-18°C—underscore risks from cloud cover or northerly gusts, with final resolution hinging on 00Z updates from the China Meteorological Administration.
Experimental AI-generated summary referencing Polymarket data · Updated
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