Official forecasts from the Japan Meteorological Agency and model consensus indicate Tokyo's highest temperature on June 13 will reach 27°C under typical early-summer conditions, with moderate humidity, light winds, and limited cloud cover supporting gradual daytime warming to that level. Historical climatology shows mid-June maxima averaging 26°C, providing a strong baseline that aligns with current observations and short-range guidance. The overwhelming 99.9% market-implied probability reflects this tight convergence of data. An unexpected cold front, heavier rainfall, or localized measurement variance at official stations could shift the recorded high, though such deviations remain improbable given the stable pattern and proximity to day's end.
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 June 13?
27°C 100.0%
21°C or below <1%
22°C <1%
23°C <1%
$90,092 Vol.
$90,092 Vol.
21°C or below
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
Yes
28°C
No
29°C
No
30°C
No
31°C or higher
No
27°C 100.0%
21°C or below <1%
22°C <1%
23°C <1%
$90,092 Vol.
$90,092 Vol.
21°C or below
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
Yes
28°C
No
29°C
No
30°C
No
31°C or higher
No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Tokyo Haneda Airport Station, available here: https://www.wunderground.com/history/daily/jp/tokyo/RJTT.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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: Jun 11, 2026, 12:04 AM ET
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Tokyo Haneda Airport Station, available here: https://www.wunderground.com/history/daily/jp/tokyo/RJTT.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official forecasts from the Japan Meteorological Agency and model consensus indicate Tokyo's highest temperature on June 13 will reach 27°C under typical early-summer conditions, with moderate humidity, light winds, and limited cloud cover supporting gradual daytime warming to that level. Historical climatology shows mid-June maxima averaging 26°C, providing a strong baseline that aligns with current observations and short-range guidance. The overwhelming 99.9% market-implied probability reflects this tight convergence of data. An unexpected cold front, heavier rainfall, or localized measurement variance at official stations could shift the recorded high, though such deviations remain improbable given the stable pattern and proximity to day's end.
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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