Trader consensus on Polymarket has converged to a 100% implied probability for a 27°C high temperature in Beijing on April 21, driven by real-time observations at the official resolution station—Beijing Capital International Airport—showing afternoon peaks reaching exactly 27°C under clear skies and light winds (2-13 mph). This marks a rebound from the past week's highs of 20-23°C amid northerly flows and partial cloudiness, as reported by the China Meteorological Administration (CMA); today's persistent solar heating, aligned with spring climatology where clear late-April days often exceed the 22°C monthly average, supports this positioning per CMA model consensus and AccuWeather's 78-79°F (26°C) guidance. A realistic challenge would require an improbable late-afternoon surge before diurnal cooling post-5 PM Beijing time, with final CMA observations pending 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 Beijing on April 21?
27°C 100.0%
22°C or below <1%
23°C <1%
24°C <1%
$136,409 Vol.
$136,409 Vol.
22°C or below
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
Yes
28°C
No
29°C
No
30°C
No
31°C
No
32°C or higher
No
27°C 100.0%
22°C or below <1%
23°C <1%
24°C <1%
$136,409 Vol.
$136,409 Vol.
22°C or below
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
Yes
28°C
No
29°C
No
30°C
No
31°C
No
32°C or higher
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 Beijing Capital International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/cn/beijing/ZBAA.
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 19, 2026, 12:54 AM ET
Resolution Source
https://www.wunderground.com/history/daily/cn/beijing/ZBAAResolver
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 Beijing Capital International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/cn/beijing/ZBAA.
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/beijing/ZBAAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket has converged to a 100% implied probability for a 27°C high temperature in Beijing on April 21, driven by real-time observations at the official resolution station—Beijing Capital International Airport—showing afternoon peaks reaching exactly 27°C under clear skies and light winds (2-13 mph). This marks a rebound from the past week's highs of 20-23°C amid northerly flows and partial cloudiness, as reported by the China Meteorological Administration (CMA); today's persistent solar heating, aligned with spring climatology where clear late-April days often exceed the 22°C monthly average, supports this positioning per CMA model consensus and AccuWeather's 78-79°F (26°C) guidance. A realistic challenge would require an improbable late-afternoon surge before diurnal cooling post-5 PM Beijing time, with final CMA observations pending 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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