Recent forecasts for Shanghai indicate a high likelihood of cloud cover, showers, or scattered thunderstorms on September 26, with official guidance pointing to daytime maxima near 30–32°C amid moderating winds and elevated humidity. These conditions introduce uncertainty in peak temperature readings, as precipitation and reduced insolation can suppress afternoon warming compared to clearer days earlier in the week. Trader positioning clusters tightly around 29–31°C, reflecting model consensus on steering patterns and moisture influx while acknowledging potential revisions from updated runs by the China Meteorological Administration. Historical September baselines for the region average highs near 27–29°C, underscoring the current warmth but highlighting sensitivity to timing of any convective activity before 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 September 26?
29°C 32%
30°C 30%
31°C 21%
28°C 19%
27°C or below
6%
28°C
19%
29°C
32%
30°C
30%
31°C
21%
32°C
14%
33°C
12%
34°C
2%
35°C
1%
36°C
<1%
37°C or higher
<1%
29°C 32%
30°C 30%
31°C 21%
28°C 19%
27°C or below
6%
28°C
19%
29°C
32%
30°C
30%
31°C
21%
32°C
14%
33°C
12%
34°C
2%
35°C
1%
36°C
<1%
37°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.
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 24, 2026, 12:57 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.
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 forecasts for Shanghai indicate a high likelihood of cloud cover, showers, or scattered thunderstorms on September 26, with official guidance pointing to daytime maxima near 30–32°C amid moderating winds and elevated humidity. These conditions introduce uncertainty in peak temperature readings, as precipitation and reduced insolation can suppress afternoon warming compared to clearer days earlier in the week. Trader positioning clusters tightly around 29–31°C, reflecting model consensus on steering patterns and moisture influx while acknowledging potential revisions from updated runs by the China Meteorological Administration. Historical September baselines for the region average highs near 27–29°C, underscoring the current warmth but highlighting sensitivity to timing of any convective activity before 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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