Persistent cloud cover and widespread thunderstorms forecast for Tokyo on September 15 are the main factors anchoring market-implied odds around 26–27°C. Multiple model runs, including GFS guidance, show overcast skies, high humidity near 90%, and southerly flow delivering moisture that limits daytime heating, with daytime peaks expected near 26°C and brief afternoon rises possibly reaching 27°C. These conditions align with late-summer patterns where rain-cooled air and reduced solar radiation suppress maxima below recent clear-day levels. Traders appear to weigh the narrow window for any brief clearing that could allow 28°C against the high likelihood of sustained precipitation keeping readings at or below 27°C. Updated model runs and official Japan Meteorological Agency guidance over the next 24 hours will be key for refining these probabilities.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateHighest temperature in Tokyo on September 15?
27°C 41%
26°C 30%
28°C 18%
25°C 8%
21°C or below
<1%
22°C
1%
23°C
2%
24°C
4%
25°C
8%
26°C
30%
27°C
41%
28°C
18%
29°C
4%
30°C
1%
31°C or higher
1%
27°C 41%
26°C 30%
28°C 18%
25°C 8%
21°C or below
<1%
22°C
1%
23°C
2%
24°C
4%
25°C
8%
26°C
30%
27°C
41%
28°C
18%
29°C
4%
30°C
1%
31°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.
Binuksan ang Market: Sep 13, 2026, 12:57 PM 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...Persistent cloud cover and widespread thunderstorms forecast for Tokyo on September 15 are the main factors anchoring market-implied odds around 26–27°C. Multiple model runs, including GFS guidance, show overcast skies, high humidity near 90%, and southerly flow delivering moisture that limits daytime heating, with daytime peaks expected near 26°C and brief afternoon rises possibly reaching 27°C. These conditions align with late-summer patterns where rain-cooled air and reduced solar radiation suppress maxima below recent clear-day levels. Traders appear to weigh the narrow window for any brief clearing that could allow 28°C against the high likelihood of sustained precipitation keeping readings at or below 27°C. Updated model runs and official Japan Meteorological Agency guidance over the next 24 hours will be key for refining these probabilities.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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