Recent forecasts for Tokyo on September 3 point to increasing cloud cover, high humidity, and scattered thunderstorms driven by southerly flow ahead of a frontal boundary, which should limit peak insolation and promote evaporative cooling. Model consensus from sources like the Japan Meteorological Agency and global ensembles shows afternoon highs most likely in the 30–31°C range, consistent with early-September climatology of 28–30°C amid the seasonal transition. Trader odds cluster tightly around these values because minor shifts in storm timing, wind speed, or boundary-layer moisture could easily tip the daily maximum by 1°C either way, while stronger convection or clearer breaks remain lower-probability outcomes.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Tokyo on September 3?
30°C 34%
31°C 29%
29°C 19%
32°C 12%
25°C or below
1%
26°C
2%
27°C
3%
28°C
9%
29°C
19%
30°C
34%
31°C
29%
32°C
12%
33°C
3%
34°C
2%
35°C or higher
1%
30°C 34%
31°C 29%
29°C 19%
32°C 12%
25°C or below
1%
26°C
2%
27°C
3%
28°C
9%
29°C
19%
30°C
34%
31°C
29%
32°C
12%
33°C
3%
34°C
2%
35°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=rjtt
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 1, 2026, 12:56 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=rjttResolver
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=rjtt
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=rjttResolver
0x69c47De9D...Recent forecasts for Tokyo on September 3 point to increasing cloud cover, high humidity, and scattered thunderstorms driven by southerly flow ahead of a frontal boundary, which should limit peak insolation and promote evaporative cooling. Model consensus from sources like the Japan Meteorological Agency and global ensembles shows afternoon highs most likely in the 30–31°C range, consistent with early-September climatology of 28–30°C amid the seasonal transition. Trader odds cluster tightly around these values because minor shifts in storm timing, wind speed, or boundary-layer moisture could easily tip the daily maximum by 1°C either way, while stronger convection or clearer breaks remain lower-probability outcomes.
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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