Trader consensus on Polymarket favors 19°C (36.5% implied probability) as Shanghai's highest temperature on March 30, closely trailed by 18°C and 20°C, reflecting tight uncertainty in the latest ECMWF and GFS ensemble forecasts projecting daytime maxima of 18–21°C—mildly above the late-March climatological average of 16–17°C. This positioning stems from yesterday's confirmed China Meteorological Administration observation of an 18°C high amid climbing temperatures from 15–17°C earlier in the week, driven by persistent southerly airflow introducing warmer air masses. Official forecasts from AccuWeather (18°C high) and CMA-linked sources (18–19°C) emphasize cloudy skies and morning light rain, which could suppress peaks via increased cloud cover and reduced insolation, with hourly station data through afternoon providing resolution clarity.
Résumé expérimental généré par IA à partir des données Polymarket · Mis à jourHighest temperature in Shanghai on March 30?
Highest temperature in Shanghai on March 30?
19°C 44%
18°C 26%
20°C 24%
21°C 6%
$66,105 Vol.
$66,105 Vol.
15°C
<1%
16°C
<1%
17°C
4%
18°C
26%
19°C
44%
20°C
24%
21°C
6%
22°C
1%
23°C or higher
<1%
19°C 44%
18°C 26%
20°C 24%
21°C 6%
$66,105 Vol.
$66,105 Vol.
15°C
<1%
16°C
<1%
17°C
4%
18°C
26%
19°C
44%
20°C
24%
21°C
6%
22°C
1%
23°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.
Marché ouvert : Mar 29, 2026, 2:16 PM ET
Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...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.
Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Trader consensus on Polymarket favors 19°C (36.5% implied probability) as Shanghai's highest temperature on March 30, closely trailed by 18°C and 20°C, reflecting tight uncertainty in the latest ECMWF and GFS ensemble forecasts projecting daytime maxima of 18–21°C—mildly above the late-March climatological average of 16–17°C. This positioning stems from yesterday's confirmed China Meteorological Administration observation of an 18°C high amid climbing temperatures from 15–17°C earlier in the week, driven by persistent southerly airflow introducing warmer air masses. Official forecasts from AccuWeather (18°C high) and CMA-linked sources (18–19°C) emphasize cloudy skies and morning light rain, which could suppress peaks via increased cloud cover and reduced insolation, with hourly station data through afternoon providing resolution clarity.
Résumé expérimental généré par IA à partir des données Polymarket · Mis à jour
Méfiez-vous des liens externes.
Méfiez-vous des liens externes.
Questions fréquentes