**Trader consensus at 100% implied probability for a 30°C high in Shanghai on September 6 reflects broad agreement across official forecasts and observational data pointing to that exact threshold.** Multiple meteorological sources, including regional models and China Meteorological Administration-aligned outlooks, project daytime maxima near 30°C under partly cloudy to clearing skies with light northerly winds and moderate humidity. Current conditions show afternoon readings climbing into the upper 20s°C, consistent with seasonal norms for early September when mean highs typically range 27–29°C. Resolution hinges on the official daily maximum recorded at designated stations, leaving limited room for deviation unless localized convective activity or measurement timing produces a final value outside the narrow band.
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 6?
30°C 100.0%
25°C or below <1%
26°C <1%
27°C <1%
$58,391 Vol.
$58,391 Vol.
25°C or below
No
26°C
No
27°C
No
28°C
No
29°C
No
30°C
Yes
31°C
No
32°C
No
33°C
No
34°C
No
35°C or higher
No
30°C 100.0%
25°C or below <1%
26°C <1%
27°C <1%
$58,391 Vol.
$58,391 Vol.
25°C or below
No
26°C
No
27°C
No
28°C
No
29°C
No
30°C
Yes
31°C
No
32°C
No
33°C
No
34°C
No
35°C or higher
No
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 4, 2026, 12:56 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zspdResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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...Outcome proposed: No
No dispute
Final outcome: No
**Trader consensus at 100% implied probability for a 30°C high in Shanghai on September 6 reflects broad agreement across official forecasts and observational data pointing to that exact threshold.** Multiple meteorological sources, including regional models and China Meteorological Administration-aligned outlooks, project daytime maxima near 30°C under partly cloudy to clearing skies with light northerly winds and moderate humidity. Current conditions show afternoon readings climbing into the upper 20s°C, consistent with seasonal norms for early September when mean highs typically range 27–29°C. Resolution hinges on the official daily maximum recorded at designated stations, leaving limited room for deviation unless localized convective activity or measurement timing produces a final value outside the narrow band.
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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