Recent official forecasts from sources including the Met Office, national meteorological services, and ensemble models project a daytime high of 32°C in Shanghai on August 31 amid partly cloudy to overcast skies with light showers or thunderstorms possible. This outcome aligns with the current warm, humid late-summer regime influenced by southerly flow and residual moisture, without an approaching cold front or strong subsidence to drive extremes higher or lower. Multiple short-range model runs converge on this value, consistent with recent observed highs near 32–33°C, though localized variations in cloud cover or rainfall timing introduce modest uncertainty around the exact peak. Traders have weighted the 32°C resolution most heavily on the basis of this model agreement and historical climatology for the period.
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 54%
31°C 29%
33°C 16%
34°C 3.4%
26°C or below
<1%
27°C
<1%
28°C
<1%
29°C
1%
30°C
3%
31°C
29%
32°C
54%
33°C
16%
34°C
3%
35°C
<1%
36°C or higher
<1%
32°C 54%
31°C 29%
33°C 16%
34°C 3.4%
26°C or below
<1%
27°C
<1%
28°C
<1%
29°C
1%
30°C
3%
31°C
29%
32°C
54%
33°C
16%
34°C
3%
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 official forecasts from sources including the Met Office, national meteorological services, and ensemble models project a daytime high of 32°C in Shanghai on August 31 amid partly cloudy to overcast skies with light showers or thunderstorms possible. This outcome aligns with the current warm, humid late-summer regime influenced by southerly flow and residual moisture, without an approaching cold front or strong subsidence to drive extremes higher or lower. Multiple short-range model runs converge on this value, consistent with recent observed highs near 32–33°C, though localized variations in cloud cover or rainfall timing introduce modest uncertainty around the exact peak. Traders have weighted the 32°C resolution most heavily on the basis of this model agreement and historical climatology for the period.
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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