The China Meteorological Administration's latest forecast ensemble projects Shanghai's daytime high near 21.5°C on March 28 under partly cloudy skies and light southerly winds, anchoring trader sentiment with 21°C at 57% and 22°C at 38% implied probabilities. This reflects mild air advection from southern high-pressure influence, enabling sufficient solar heating despite hazy conditions, while deviating above the March climatological average of 13°C due to persistent early-spring warmth. Updated model runs over the past 24 hours shifted projections upward from 20°C, tightening the cluster around these outcomes. Hourly observations from official Shanghai stations will monitor maxima through evening, with uncertainties from variable cloud cover or urban heat islands potentially influencing the final reading between 21–22°C.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 28?
Highest temperature in Shanghai on March 28?
21°C 52.8%
22°C 41.7%
23°C 2.8%
24°C or higher <1%
$256,198 Vol.
$256,198 Vol.
16°C
<1%
19°C
<1%
20°C
<1%
21°C
53%
22°C
42%
23°C
3%
24°C or higher
1%
21°C 52.8%
22°C 41.7%
23°C 2.8%
24°C or higher <1%
$256,198 Vol.
$256,198 Vol.
16°C
<1%
19°C
<1%
20°C
<1%
21°C
53%
22°C
42%
23°C
3%
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...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
The China Meteorological Administration's latest forecast ensemble projects Shanghai's daytime high near 21.5°C on March 28 under partly cloudy skies and light southerly winds, anchoring trader sentiment with 21°C at 57% and 22°C at 38% implied probabilities. This reflects mild air advection from southern high-pressure influence, enabling sufficient solar heating despite hazy conditions, while deviating above the March climatological average of 13°C due to persistent early-spring warmth. Updated model runs over the past 24 hours shifted projections upward from 20°C, tightening the cluster around these outcomes. Hourly observations from official Shanghai stations will monitor maxima through evening, with uncertainties from variable cloud cover or urban heat islands potentially influencing the final reading between 21–22°C.
Experimental AI-generated summary referencing Polymarket data · Updated
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