Recent model consensus points to a minimum temperature near 25–27°C in Shanghai on September 4, driven by northeasterly winds advecting moderately cooler maritime air and variable cloud cover that limits radiational cooling overnight. Persistent humidity and light showers or drizzle in preceding days have kept surface conditions moist, while daytime highs near 29°C provide limited thermal contrast for sharp overnight drops. Ensemble spreads in global and regional models reflect modest uncertainty around exact timing of clearing skies and wind shifts, keeping the 25–27°C outcomes closely matched in trader positioning as resolution approaches.
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 September 4?
27°C 39%
26°C 28%
28°C 24%
25°C 24%
21°C or below
3%
22°C
15%
23°C
9%
24°C
6%
25°C
24%
26°C
33%
27°C
39%
28°C
24%
29°C
8%
30°C
8%
31°C or higher
<1%
27°C 39%
26°C 28%
28°C 24%
25°C 24%
21°C or below
3%
22°C
15%
23°C
9%
24°C
6%
25°C
24%
26°C
33%
27°C
39%
28°C
24%
29°C
8%
30°C
8%
31°C or higher
<1%
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.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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: Sep 2, 2026, 12:29 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.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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 model consensus points to a minimum temperature near 25–27°C in Shanghai on September 4, driven by northeasterly winds advecting moderately cooler maritime air and variable cloud cover that limits radiational cooling overnight. Persistent humidity and light showers or drizzle in preceding days have kept surface conditions moist, while daytime highs near 29°C provide limited thermal contrast for sharp overnight drops. Ensemble spreads in global and regional models reflect modest uncertainty around exact timing of clearing skies and wind shifts, keeping the 25–27°C outcomes closely matched in trader positioning as resolution approaches.
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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