Latest ensemble forecasts from global models like ECMWF and GFS, corroborated by Shanghai Meteorological Bureau updates, pinpoint a daytime high of 15°C on March 23, driven by a moderating cold air mass from northern China clashing with mild southerly flows amid typical early spring variability. Recent observations show overnight lows around 8-10°C, with diurnal heating capped by persistent cloud cover and light winds, aligning trader consensus at 66% implied probability for 15°C. Nearby 14°C (13.5%) and 16°C (11.5%) reflect model spread uncertainty, while historical March maxima average 13-16°C, positioning outliers below 1% as low-likelihood tails. Traders eye afternoon model refreshes for potential shifts before resolution.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 23?
Highest temperature in Shanghai on March 23?
15°C 79%
16°C 15%
14°C 9%
17°C 1.0%
$170,297 Vol.
$170,297 Vol.
13°C
<1%
14°C
9%
15°C
79%
16°C
15%
17°C
1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C or higher
<1%
15°C 79%
16°C 15%
14°C 9%
17°C 1.0%
$170,297 Vol.
$170,297 Vol.
13°C
<1%
14°C
9%
15°C
79%
16°C
15%
17°C
1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C or higher
<1%
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...Outcome proposed: No
No dispute
Final outcome: No
Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Latest ensemble forecasts from global models like ECMWF and GFS, corroborated by Shanghai Meteorological Bureau updates, pinpoint a daytime high of 15°C on March 23, driven by a moderating cold air mass from northern China clashing with mild southerly flows amid typical early spring variability. Recent observations show overnight lows around 8-10°C, with diurnal heating capped by persistent cloud cover and light winds, aligning trader consensus at 66% implied probability for 15°C. Nearby 14°C (13.5%) and 16°C (11.5%) reflect model spread uncertainty, while historical March maxima average 13-16°C, positioning outliers below 1% as low-likelihood tails. Traders eye afternoon model refreshes for potential shifts before resolution.
Experimental AI-generated summary referencing Polymarket data · Updated
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