Trader consensus on Polymarket heavily favors a Shanghai high temperature of 22°C (50.3%) or 21°C (36.0%), mirroring the latest China Meteorological Administration (CMA) guidance and ECMWF/GFS ensemble forecasts projecting daytime maxima in the 20-22°C range under partly cloudy skies. This positioning stems from a post-frontal high-pressure ridge ushering light southerly winds that advect warmer, moist air masses northward, boosting temperatures above late-March climatological norms of 15-18°C amid neutral ENSO conditions. Recent model runs over the past 24 hours refined this outlook, shifting odds from lower values as soundings confirmed subsidence and minimal cloud interference. Ensemble spreads highlight 1-2°C uncertainty from potential sea breeze enhancement or isolated showers; Shanghai observatory hourly data will pinpoint the peak this afternoon.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 28?
Highest temperature in Shanghai on March 28?
21°C 56.5%
22°C 36.7%
23°C 4.7%
24°C or higher <1%
$246,464 Vol.
$246,464 Vol.
16°C
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C
57%
22°C
37%
23°C
5%
24°C or higher
1%
21°C 56.5%
22°C 36.7%
23°C 4.7%
24°C or higher <1%
$246,464 Vol.
$246,464 Vol.
16°C
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C
57%
22°C
37%
23°C
5%
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
Dispute window
Final
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
Dispute window
Final
Trader consensus on Polymarket heavily favors a Shanghai high temperature of 22°C (50.3%) or 21°C (36.0%), mirroring the latest China Meteorological Administration (CMA) guidance and ECMWF/GFS ensemble forecasts projecting daytime maxima in the 20-22°C range under partly cloudy skies. This positioning stems from a post-frontal high-pressure ridge ushering light southerly winds that advect warmer, moist air masses northward, boosting temperatures above late-March climatological norms of 15-18°C amid neutral ENSO conditions. Recent model runs over the past 24 hours refined this outlook, shifting odds from lower values as soundings confirmed subsidence and minimal cloud interference. Ensemble spreads highlight 1-2°C uncertainty from potential sea breeze enhancement or isolated showers; Shanghai observatory hourly data will pinpoint the peak this afternoon.
Experimental AI-generated summary referencing Polymarket data · Updated
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