Trader consensus has locked in 21°C as the highest temperature in Beijing on March 28 at nearly 100% implied probability, driven by the latest ensemble forecasts from the China Meteorological Administration (CMA), ECMWF, and GFS models converging tightly on a daytime peak of 21–22°C under a persistent high-pressure ridge delivering clear skies and southerly winds at 5–10 mph. These conditions bring mild air masses above the late-March climatological average of 16°C, boosted by Beijing's urban heat island effect, following a cooling trend confirmed in model runs from March 24–26 that dropped earlier expectations of 26°C or higher. Realistic challenges include late-afternoon cloud development or a sudden wind shift reducing insolation, with final resolution hinging on official observations from Beijing's primary weather stations by day's end.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Beijing on March 28?
Highest temperature in Beijing on March 28?
21°C 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$124,006 Vol.
$124,006 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%
$124,006 Vol.
$124,006 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: Mar 24, 2026, 6:10 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 has locked in 21°C as the highest temperature in Beijing on March 28 at nearly 100% implied probability, driven by the latest ensemble forecasts from the China Meteorological Administration (CMA), ECMWF, and GFS models converging tightly on a daytime peak of 21–22°C under a persistent high-pressure ridge delivering clear skies and southerly winds at 5–10 mph. These conditions bring mild air masses above the late-March climatological average of 16°C, boosted by Beijing's urban heat island effect, following a cooling trend confirmed in model runs from March 24–26 that dropped earlier expectations of 26°C or higher. Realistic challenges include late-afternoon cloud development or a sudden wind shift reducing insolation, with final resolution hinging on official observations from Beijing's primary weather stations by day's end.
Experimental AI-generated summary referencing Polymarket data · Updated

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