Trader consensus on Polymarket assigns a near-certain 100% implied probability to a highest temperature of 22°C in Shanghai on April 28, driven by real-time observational data from the Xujiahui Observatory and Pudong International Airport station—the market's official resolution sources—recording a midday peak of 22°C before clouds and light rain from an advancing frontal system suppressed further warming. This follows yesterday's anomalous 30.1°C high, with China Meteorological Administration guidance and global models (GFS, ECMWF) converging on subdued daytime highs amid strong easterly winds, overcast skies, and precipitation reducing solar heating. April climatology averages 19°C highs, aligning with this positioning; realistic challenges like unexpected clearing for late-afternoon insolation are improbable as evening cools rapidly, with overnight lows near 11°C expected. Final CMA daily summary will confirm resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Shanghai on April 28?
Highest temperature in Shanghai on April 28?
22°C 100.0%
14°C or below <1%
15°C <1%
16°C <1%
$521,327 Vol.
$521,327 Vol.
Apr 28, 2026
14°C or below
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
Yes
23°C
No
24°C or higher
No
22°C 100.0%
14°C or below <1%
15°C <1%
16°C <1%
$521,327 Vol.
$521,327 Vol.
Apr 28, 2026
14°C or below
$12,155 Vol.
No
15°C
$9,981 Vol.
No
16°C
$16,711 Vol.
No
17°C
$37,076 Vol.
No
18°C
$44,808 Vol.
No
19°C
$47,096 Vol.
No
20°C
$46,520 Vol.
No
21°C
$98,896 Vol.
No
22°C
$130,002 Vol.
Yes
23°C
$31,845 Vol.
No
24°C or higher
$46,238 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 28 Apr '26.
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.Trader consensus on Polymarket assigns a near-certain 100% implied probability to a highest temperature of 22°C in Shanghai on April 28, driven by real-time observational data from the Xujiahui Observatory and Pudong International Airport station—the market's official resolution sources—recording a midday peak of 22°C before clouds and light rain from an advancing frontal system suppressed further warming. This follows yesterday's anomalous 30.1°C high, with China Meteorological Administration guidance and global models (GFS, ECMWF) converging on subdued daytime highs amid strong easterly winds, overcast skies, and precipitation reducing solar heating. April climatology averages 19°C highs, aligning with this positioning; realistic challenges like unexpected clearing for late-afternoon insolation are improbable as evening cools rapidly, with overnight lows near 11°C expected. Final CMA daily summary will confirm resolution.
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 28 Apr '26.
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.
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 26, 2026, 12:19 AM ET
Volume
$521,327End Date
Apr 28, 2026Market Opened
Apr 26, 2026, 12:19 AM ETResolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 28 Apr '26.
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.Trader consensus on Polymarket assigns a near-certain 100% implied probability to a highest temperature of 22°C in Shanghai on April 28, driven by real-time observational data from the Xujiahui Observatory and Pudong International Airport station—the market's official resolution sources—recording a midday peak of 22°C before clouds and light rain from an advancing frontal system suppressed further warming. This follows yesterday's anomalous 30.1°C high, with China Meteorological Administration guidance and global models (GFS, ECMWF) converging on subdued daytime highs amid strong easterly winds, overcast skies, and precipitation reducing solar heating. April climatology averages 19°C highs, aligning with this positioning; realistic challenges like unexpected clearing for late-afternoon insolation are improbable as evening cools rapidly, with overnight lows near 11°C expected. Final CMA daily summary will confirm resolution.
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 28 Apr '26.
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.
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.
Volume
$521,327End Date
Apr 28, 2026Market Opened
Apr 26, 2026, 12:19 AM ETResolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket assigns a near-certain 100% implied probability to a highest temperature of 22°C in Shanghai on April 28, driven by real-time observational data from the Xujiahui Observatory and Pudong International Airport station—the market's official resolution sources—recording a midday peak of 22°C before clouds and light rain from an advancing frontal system suppressed further warming. This follows yesterday's anomalous 30.1°C high, with China Meteorological Administration guidance and global models (GFS, ECMWF) converging on subdued daytime highs amid strong easterly winds, overcast skies, and precipitation reducing solar heating. April climatology averages 19°C highs, aligning with this positioning; realistic challenges like unexpected clearing for late-afternoon insolation are improbable as evening cools rapidly, with overnight lows near 11°C expected. Final CMA daily summary will confirm resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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