Latest ECMWF and GFS ensemble forecasts center Shanghai's highest temperature on April 5 at 21-23°C means, with spreads exceeding 4°C fueling tight market-implied odds clustered around these outcomes and reflecting genuine uncertainty in cloud cover evolution and southerly wind strength. Recent cloudy conditions over the past week, including April 1's observed 21°C high at Xujiahui Observatory, have capped daytime heating near seasonal norms (historical early-April average ~19°C), but divergent model runs show potential for 24-25°C if low-level moisture decreases and solar insolation increases, versus 20-21°C persistence under overcast skies from lingering frontal influences. China Meteorological Administration bulletins and fresh 00Z model outputs daily could sharpen consensus ahead of resolution via official observations.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on April 5?
Highest temperature in Shanghai on April 5?
23°C 25%
22°C 17%
21°C 16%
24°C 14%
18°C or below
6%
19°C
5%
20°C
6%
21°C
16%
22°C
17%
23°C
25%
24°C
14%
25°C
12%
26°C
5%
27°C
4%
28°C or higher
1%
23°C 25%
22°C 17%
21°C 16%
24°C 14%
18°C or below
6%
19°C
5%
20°C
6%
21°C
16%
22°C
17%
23°C
25%
24°C
14%
25°C
12%
26°C
5%
27°C
4%
28°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: Apr 1, 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...Latest ECMWF and GFS ensemble forecasts center Shanghai's highest temperature on April 5 at 21-23°C means, with spreads exceeding 4°C fueling tight market-implied odds clustered around these outcomes and reflecting genuine uncertainty in cloud cover evolution and southerly wind strength. Recent cloudy conditions over the past week, including April 1's observed 21°C high at Xujiahui Observatory, have capped daytime heating near seasonal norms (historical early-April average ~19°C), but divergent model runs show potential for 24-25°C if low-level moisture decreases and solar insolation increases, versus 20-21°C persistence under overcast skies from lingering frontal influences. China Meteorological Administration bulletins and fresh 00Z model outputs daily could sharpen consensus ahead of resolution via official observations.
Experimental AI-generated summary referencing Polymarket data · Updated
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