Recent forecasts from multiple models position Shanghai's August 31 high temperature near 31–33 °C, with several sources converging on 31–32 °C amid partly cloudy skies, scattered showers, and southeasterly flow. Persistent humidity, limited sunshine, and 40–60 % precipitation chances suppress peak heating relative to earlier August readings that occasionally exceeded 34 °C. Model consensus favors modest cooling from cloud cover and moisture rather than a sharp cold front, keeping 32 °C the clearest market favorite while 31 °C retains secondary support. Updated runs from NOAA, ECMWF, and the China Meteorological Administration over the next 48 hours will refine these probabilities ahead of market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Shanghai on August 31?
32°C 48%
31°C 26%
33°C 10%
30°C 9%
26°C or below
<1%
27°C
<1%
28°C
1%
29°C
4%
30°C
9%
31°C
26%
32°C
48%
33°C
10%
34°C
7%
35°C
<1%
36°C or higher
<1%
32°C 48%
31°C 26%
33°C 10%
30°C 9%
26°C or below
<1%
27°C
<1%
28°C
1%
29°C
4%
30°C
9%
31°C
26%
32°C
48%
33°C
10%
34°C
7%
35°C
<1%
36°C or higher
<1%
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zspd
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Aug 29, 2026, 12:56 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zspdResolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zspd
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zspdResolver
0x69c47De9D...Recent forecasts from multiple models position Shanghai's August 31 high temperature near 31–33 °C, with several sources converging on 31–32 °C amid partly cloudy skies, scattered showers, and southeasterly flow. Persistent humidity, limited sunshine, and 40–60 % precipitation chances suppress peak heating relative to earlier August readings that occasionally exceeded 34 °C. Model consensus favors modest cooling from cloud cover and moisture rather than a sharp cold front, keeping 32 °C the clearest market favorite while 31 °C retains secondary support. Updated runs from NOAA, ECMWF, and the China Meteorological Administration over the next 48 hours will refine these probabilities ahead of market resolution.
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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