Trader consensus on Polymarket has locked in a 100% implied probability for Beijing's highest temperature reaching exactly 21°C on April 28, driven by the China Meteorological Administration's (CMA) latest forecast projecting this maximum under persistent cloudy skies and northerly winds, which limit solar heating and convective warming. Current observations from Beijing's meteorological stations align closely, with daytime readings peaking near this threshold amid overcast conditions that have characterized the past week, cooler than the late-April climatological average of around 22°C. Model consensus from regional forecasts reinforces stability, though a realistic challenge could arise from unexpected prolonged clearing in the afternoon, potentially enabling brief spikes to 22°C via enhanced insolation; official end-of-day data from CMA will resolve the market.
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 28?
21°C 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$173,718 Vol.
$173,718 Vol.
16°C or below
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°C
No
25°C
No
26°C or higher
No
21°C 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$173,718 Vol.
$173,718 Vol.
16°C or below
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°C
No
25°C
No
26°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 26, 2026, 12:12 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 locked in a 100% implied probability for Beijing's highest temperature reaching exactly 21°C on April 28, driven by the China Meteorological Administration's (CMA) latest forecast projecting this maximum under persistent cloudy skies and northerly winds, which limit solar heating and convective warming. Current observations from Beijing's meteorological stations align closely, with daytime readings peaking near this threshold amid overcast conditions that have characterized the past week, cooler than the late-April climatological average of around 22°C. Model consensus from regional forecasts reinforces stability, though a realistic challenge could arise from unexpected prolonged clearing in the afternoon, potentially enabling brief spikes to 22°C via enhanced insolation; official end-of-day data from CMA will resolve the market.
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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