Latest ensemble forecasts from ECMWF and GFS models anchor trader sentiment toward an 18°C high in Shanghai on March 28 (34.5% implied probability), edging out 19°C (26%) and 17°C (25%), amid a mild southerly flow boosting temperatures above the 16°C March 28 climatological average. Differentiating factors include afternoon cloud cover variability—persistent sunshine could elevate peaks to 19°C via enhanced insolation, while scattered showers or overcast conditions suppress diurnal heating to 17°C or below. Shanghai's urban heat island amplifies station readings at Xujiahui by 1-2°C over rural baselines, but model spread reflects uncertainty in boundary layer mixing; traders monitor Chinese Meteorological Administration updates for final cues.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 28?
Highest temperature in Shanghai on March 28?
18°C 35%
17°C 27%
19°C 24%
20°C 11%
14°C or below
1%
15°C
5%
16°C
7%
17°C
27%
18°C
35%
19°C
24%
20°C
11%
21°C
9%
22°C
4%
23°C
1%
24°C or higher
1%
18°C 35%
17°C 27%
19°C 24%
20°C 11%
14°C or below
1%
15°C
5%
16°C
7%
17°C
27%
18°C
35%
19°C
24%
20°C
11%
21°C
9%
22°C
4%
23°C
1%
24°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: 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...Latest ensemble forecasts from ECMWF and GFS models anchor trader sentiment toward an 18°C high in Shanghai on March 28 (34.5% implied probability), edging out 19°C (26%) and 17°C (25%), amid a mild southerly flow boosting temperatures above the 16°C March 28 climatological average. Differentiating factors include afternoon cloud cover variability—persistent sunshine could elevate peaks to 19°C via enhanced insolation, while scattered showers or overcast conditions suppress diurnal heating to 17°C or below. Shanghai's urban heat island amplifies station readings at Xujiahui by 1-2°C over rural baselines, but model spread reflects uncertainty in boundary layer mixing; traders monitor Chinese Meteorological Administration updates for final cues.
Experimental AI-generated summary referencing Polymarket data · Updated
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