Trader consensus on Polymarket heavily favors a Shanghai high of 15°C (35% implied probability), driven by the latest ECMWF and GFS ensemble forecasts converging on 14-16°C amid a persistent northerly flow channeling cool continental air from Siberia. This setup, confirmed by China Meteorological Administration observations, features light winds (5-10 km/h) and partial cloud cover suppressing daytime heating, differentiating 15°C from warmer 16-17°C outcomes that hinge on potential clearing skies. Cooler 14°C odds reflect downside risks from overnight lows near 8°C and model spread in frontal timing; historical March 23 averages (13-15°C) align closely, with resolution hinging on hourly airport readings from Pudong or Hongqiao stations by midnight UTC.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 23?
Highest temperature in Shanghai on March 23?
15°C 35%
16°C 26%
14°C 20%
17°C 12%
$10,317 Vol.
$10,317 Vol.
11°C or below
1%
12°C
1%
13°C
5%
14°C
20%
15°C
35%
16°C
26%
17°C
12%
18°C
3%
19°C
2%
20°C
1%
21°C or higher
2%
15°C 35%
16°C 26%
14°C 20%
17°C 12%
$10,317 Vol.
$10,317 Vol.
11°C or below
1%
12°C
1%
13°C
5%
14°C
20%
15°C
35%
16°C
26%
17°C
12%
18°C
3%
19°C
2%
20°C
1%
21°C or higher
2%
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: Mar 19, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Trader consensus on Polymarket heavily favors a Shanghai high of 15°C (35% implied probability), driven by the latest ECMWF and GFS ensemble forecasts converging on 14-16°C amid a persistent northerly flow channeling cool continental air from Siberia. This setup, confirmed by China Meteorological Administration observations, features light winds (5-10 km/h) and partial cloud cover suppressing daytime heating, differentiating 15°C from warmer 16-17°C outcomes that hinge on potential clearing skies. Cooler 14°C odds reflect downside risks from overnight lows near 8°C and model spread in frontal timing; historical March 23 averages (13-15°C) align closely, with resolution hinging on hourly airport readings from Pudong or Hongqiao stations by midnight UTC.
Experimental AI-generated summary referencing Polymarket data · Updated
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