Trader consensus on Polymarket overwhelmingly backs a highest temperature of 21°C in Shanghai at 99.9% implied probability, driven by the China Meteorological Administration's (CMA) latest forecast ensemble projecting a precise daytime maximum of 21°C amid partly cloudy skies and light southeasterly winds under 12 km/h. Observations from the official Xujiahui station show steady warming from mid-teens Celsius this morning, aligning with global model consensus from ECMWF and GFS clustering at 20-22°C, fueled by a warmer-than-normal southerly air mass exceeding late-March climatological highs of 13-17°C. This strong positioning reflects near-resolution confidence as the day progresses, with realistic challenges limited to prolonged clearing allowing brief solar-driven spikes to 22°C or thicker clouds capping below 21°C; final CMA evening summaries from Xujiahui will confirm.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 28?
Highest temperature in Shanghai on March 28?
21°C 99.8%
22°C <1%
23°C <1%
24°C or higher <1%
$341,276 Vol.
$341,276 Vol.
21°C
100%
22°C
<1%
23°C
<1%
24°C or higher
<1%
21°C 99.8%
22°C <1%
23°C <1%
24°C or higher <1%
$341,276 Vol.
$341,276 Vol.
21°C
100%
22°C
<1%
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...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...Trader consensus on Polymarket overwhelmingly backs a highest temperature of 21°C in Shanghai at 99.9% implied probability, driven by the China Meteorological Administration's (CMA) latest forecast ensemble projecting a precise daytime maximum of 21°C amid partly cloudy skies and light southeasterly winds under 12 km/h. Observations from the official Xujiahui station show steady warming from mid-teens Celsius this morning, aligning with global model consensus from ECMWF and GFS clustering at 20-22°C, fueled by a warmer-than-normal southerly air mass exceeding late-March climatological highs of 13-17°C. This strong positioning reflects near-resolution confidence as the day progresses, with realistic challenges limited to prolonged clearing allowing brief solar-driven spikes to 22°C or thicker clouds capping below 21°C; final CMA evening summaries from Xujiahui will confirm.
Experimental AI-generated summary referencing Polymarket data · Updated
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