Official forecasts and ensemble model runs from regional meteorological centers point to overnight lows of 27–28°C in Shanghai on August 30, driven by persistent southeast flow, high humidity near 80–90%, and extensive cloud cover that limits nocturnal radiative cooling. Recent model consensus shows minimal day-to-day cooling ahead of a weak frontal passage later in the period, keeping minimum temperatures firmly in this narrow band. Trader emphasis on 27°C reflects the most frequent guidance from global and regional models, while the secondary weighting on 28°C accounts for uncertainty in exact cloud timing and local urban heat retention; resolution hinges on the official Shanghai observatory reading at midnight.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Shanghai on August 30?
27°C 55%
28°C 35%
29°C 20%
25°C 17%
22°C or below
3%
23°C
9%
24°C
14%
25°C
17%
26°C
15%
27°C
55%
28°C
35%
29°C
20%
30°C
1%
31°C
12%
32°C or higher
9%
27°C 55%
28°C 35%
29°C 20%
25°C 17%
22°C or below
3%
23°C
9%
24°C
14%
25°C
17%
26°C
15%
27°C
55%
28°C
35%
29°C
20%
30°C
1%
31°C
12%
32°C or higher
9%
The resolution source for this market will be information from NOAA, specifically the lowest 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 28, 2026, 12:30 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 lowest 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...Official forecasts and ensemble model runs from regional meteorological centers point to overnight lows of 27–28°C in Shanghai on August 30, driven by persistent southeast flow, high humidity near 80–90%, and extensive cloud cover that limits nocturnal radiative cooling. Recent model consensus shows minimal day-to-day cooling ahead of a weak frontal passage later in the period, keeping minimum temperatures firmly in this narrow band. Trader emphasis on 27°C reflects the most frequent guidance from global and regional models, while the secondary weighting on 28°C accounts for uncertainty in exact cloud timing and local urban heat retention; resolution hinges on the official Shanghai observatory reading at midnight.
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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