Trader consensus on Polymarket prices a tight race among 19°C (28%), 20°C (29%), and 21°C (23%) for Shanghai's highest temperature on April 20, reflecting genuine uncertainty in short-range weather model ensembles like GFS and ECMWF, which cluster around 19-21°C amid mild southerly winds and variable cloud cover. Recent observations from April 17-18 at Shanghai Pudong International Airport Station hovered near 20°C, aligning with China Meteorological Administration guidance for continued spring-like conditions without major frontal passages. Key differentiators include potential for increased low-level moisture capping peaks at 19°C versus clearer skies boosting to 21°C; new model runs every 6-12 hours and CMA updates through April 19 could sharpen the outlook before resolution based on official airport measurements. Historical April averages of 19°C provide baseline context for this narrow spread.
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 20?
Highest temperature in Shanghai on April 20?
20°C 29%
19°C 29%
21°C 24%
22°C or higher 11%
NEW
NEW
Apr 20, 2026
12°C or below
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
2%
17°C
4%
18°C
9%
19°C
29%
20°C
29%
21°C
24%
22°C or higher
11%
20°C 29%
19°C 29%
21°C 24%
22°C or higher 11%
NEW
NEW
Apr 20, 2026
12°C or below
$755 Vol.
<1%
13°C
$724 Vol.
<1%
14°C
$799 Vol.
<1%
15°C
$753 Vol.
<1%
16°C
$531 Vol.
2%
17°C
$1,050 Vol.
4%
18°C
$1,375 Vol.
9%
19°C
$156 Vol.
29%
20°C
$218 Vol.
29%
21°C
$126 Vol.
24%
22°C or higher
$711 Vol.
11%
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 20 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 prices a tight race among 19°C (28%), 20°C (29%), and 21°C (23%) for Shanghai's highest temperature on April 20, reflecting genuine uncertainty in short-range weather model ensembles like GFS and ECMWF, which cluster around 19-21°C amid mild southerly winds and variable cloud cover. Recent observations from April 17-18 at Shanghai Pudong International Airport Station hovered near 20°C, aligning with China Meteorological Administration guidance for continued spring-like conditions without major frontal passages. Key differentiators include potential for increased low-level moisture capping peaks at 19°C versus clearer skies boosting to 21°C; new model runs every 6-12 hours and CMA updates through April 19 could sharpen the outlook before resolution based on official airport measurements. Historical April averages of 19°C provide baseline context for this narrow spread.
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 20 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 18, 2026, 12:24 AM ET
Volume
$7,198End Date
Apr 20, 2026Market Opened
Apr 18, 2026, 12:24 AM ETResolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...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 20 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 prices a tight race among 19°C (28%), 20°C (29%), and 21°C (23%) for Shanghai's highest temperature on April 20, reflecting genuine uncertainty in short-range weather model ensembles like GFS and ECMWF, which cluster around 19-21°C amid mild southerly winds and variable cloud cover. Recent observations from April 17-18 at Shanghai Pudong International Airport Station hovered near 20°C, aligning with China Meteorological Administration guidance for continued spring-like conditions without major frontal passages. Key differentiators include potential for increased low-level moisture capping peaks at 19°C versus clearer skies boosting to 21°C; new model runs every 6-12 hours and CMA updates through April 19 could sharpen the outlook before resolution based on official airport measurements. Historical April averages of 19°C provide baseline context for this narrow spread.
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 20 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
$7,198End Date
Apr 20, 2026Market Opened
Apr 18, 2026, 12:24 AM ETResolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Trader consensus on Polymarket prices a tight race among 19°C (28%), 20°C (29%), and 21°C (23%) for Shanghai's highest temperature on April 20, reflecting genuine uncertainty in short-range weather model ensembles like GFS and ECMWF, which cluster around 19-21°C amid mild southerly winds and variable cloud cover. Recent observations from April 17-18 at Shanghai Pudong International Airport Station hovered near 20°C, aligning with China Meteorological Administration guidance for continued spring-like conditions without major frontal passages. Key differentiators include potential for increased low-level moisture capping peaks at 19°C versus clearer skies boosting to 21°C; new model runs every 6-12 hours and CMA updates through April 19 could sharpen the outlook before resolution based on official airport measurements. Historical April averages of 19°C provide baseline context for this narrow spread.
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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